Billwhittaker // Wikimedia Commons
Most diverse counties in Iowa
The United States has a longstanding reputation as being a melting pot (or salad bowl), with its diversity manifesting itself across many different demographics. However, some places across the country are notably more heterogeneous than others.
Stacker compiled a list of the most diverse counties in Iowa using data from using data from the U.S. Census Bureau. Counties are ranked by the highest Simpson's diversity index score. Simpson’s diversity index measures community diversity on a scale of 0 (least diverse) to 1 (most diverse), more on the calculation can be read here.
Think you know which counties in your home state might be the most diverse? Keep reading to see if your predictions are correct.
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Library of Congress // Wikimedia Commons
#50. Boone County
- Index: 0.083
- Total population: 26,370
- White: 95.7% (25,246)
- Black or African American: 0.6% (168)
- American Indian and Alaska Native: 0.4% (107)
- Asian: 0.3% (82)
- Native Hawaiian and other Pacific Islander: 0.4% (112)
- 2 or more races: 1.7% (449)
- Some other Race: 0.8% (206)
- Total population: 26,370
- White: 95.7% (25,246)
- Black or African American: 0.6% (168)
- American Indian and Alaska Native: 0.4% (107)
- Asian: 0.3% (82)
- Native Hawaiian and other Pacific Islander: 0.4% (112)
- 2 or more races: 1.7% (449)
- Some other Race: 0.8% (206)
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Nst101 // Wikimedia Commons
#49. Calhoun County
- Index: 0.085
- Total population: 9,744
- White: 95.6% (9,317)
- Black or African American: 1.5% (150)
- American Indian and Alaska Native: 0.4% (36)
- Asian: 0.4% (35)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.7% (165)
- Some other Race: 0.4% (41)
- Total population: 9,744
- White: 95.6% (9,317)
- Black or African American: 1.5% (150)
- American Indian and Alaska Native: 0.4% (36)
- Asian: 0.4% (35)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.7% (165)
- Some other Race: 0.4% (41)
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Jason McLaren // Wikimedia Commons
#48. Clarke County
- Index: 0.086
- Total population: 9,360
- White: 95.6% (8,946)
- Black or African American: 0.1% (6)
- American Indian and Alaska Native: 0.4% (40)
- Asian: 0.7% (69)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.9% (177)
- Some other Race: 1.3% (122)
- Total population: 9,360
- White: 95.6% (8,946)
- Black or African American: 0.1% (6)
- American Indian and Alaska Native: 0.4% (40)
- Asian: 0.7% (69)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.9% (177)
- Some other Race: 1.3% (122)
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Kevin Schuchmann // Wikimedia Commons
#47. Jones County
- Index: 0.088
- Total population: 20,559
- White: 95.4% (19,621)
- Black or African American: 2.1% (435)
- American Indian and Alaska Native: 0.1% (27)
- Asian: 1.0% (196)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.4% (280)
- Some other Race: 0.0% (0)
- Total population: 20,559
- White: 95.4% (19,621)
- Black or African American: 2.1% (435)
- American Indian and Alaska Native: 0.1% (27)
- Asian: 1.0% (196)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.4% (280)
- Some other Race: 0.0% (0)
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Woodard // Wikimedia Commons
#46. Fayette County
- Index: 0.089
- Total population: 19,803
- White: 95.4% (18,890)
- Black or African American: 2.2% (444)
- American Indian and Alaska Native: 0.2% (34)
- Asian: 0.3% (50)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.7% (344)
- Some other Race: 0.2% (41)
- Total population: 19,803
- White: 95.4% (18,890)
- Black or African American: 2.2% (444)
- American Indian and Alaska Native: 0.2% (34)
- Asian: 0.3% (50)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.7% (344)
- Some other Race: 0.2% (41)
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en:User:Cburnett // Wikimedia Commons
#45. Jasper County
- Index: 0.091
- Total population: 36,971
- White: 95.3% (35,232)
- Black or African American: 2.0% (738)
- American Indian and Alaska Native: 0.2% (76)
- Asian: 0.5% (172)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.7% (638)
- Some other Race: 0.3% (115)
- Total population: 36,971
- White: 95.3% (35,232)
- Black or African American: 2.0% (738)
- American Indian and Alaska Native: 0.2% (76)
- Asian: 0.5% (172)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.7% (638)
- Some other Race: 0.3% (115)
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Scott Romine // Wikimedia Commons
#44. Clay County
- Index: 0.091
- Total population: 16,211
- White: 95.3% (15,446)
- Black or African American: 0.7% (112)
- American Indian and Alaska Native: 0.0% (7)
- Asian: 0.6% (105)
- Native Hawaiian and other Pacific Islander: 0.0% (2)
- 2 or more races: 2.5% (398)
- Some other Race: 0.9% (141)
- Total population: 16,211
- White: 95.3% (15,446)
- Black or African American: 0.7% (112)
- American Indian and Alaska Native: 0.0% (7)
- Asian: 0.6% (105)
- Native Hawaiian and other Pacific Islander: 0.0% (2)
- 2 or more races: 2.5% (398)
- Some other Race: 0.9% (141)
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Kevin Schuchmann // Wikimedia Commons
#43. Mahaska County
- Index: 0.092
- Total population: 22,164
- White: 95.3% (21,112)
- Black or African American: 1.4% (312)
- American Indian and Alaska Native: 0.3% (57)
- Asian: 1.5% (342)
- Native Hawaiian and other Pacific Islander: 0.2% (50)
- 2 or more races: 1.3% (290)
- Some other Race: 0.0% (1)
- Total population: 22,164
- White: 95.3% (21,112)
- Black or African American: 1.4% (312)
- American Indian and Alaska Native: 0.3% (57)
- Asian: 1.5% (342)
- Native Hawaiian and other Pacific Islander: 0.2% (50)
- 2 or more races: 1.3% (290)
- Some other Race: 0.0% (1)
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Ammodramus // Wikimedia Commons
#42. Fremont County
- Index: 0.093
- Total population: 6,946
- White: 95.2% (6,614)
- Black or African American: 0.8% (55)
- American Indian and Alaska Native: 0.6% (42)
- Asian: 0.0% (0)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.2% (80)
- Some other Race: 2.2% (155)
- Total population: 6,946
- White: 95.2% (6,614)
- Black or African American: 0.8% (55)
- American Indian and Alaska Native: 0.6% (42)
- Asian: 0.0% (0)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.2% (80)
- Some other Race: 2.2% (155)
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Farragutful // Wikimedia Commons
#41. Washington County
- Index: 0.093
- Total population: 22,100
- White: 95.2% (21,043)
- Black or African American: 0.8% (172)
- American Indian and Alaska Native: 0.3% (58)
- Asian: 0.6% (132)
- Native Hawaiian and other Pacific Islander: 0.0% (4)
- 2 or more races: 1.4% (299)
- Some other Race: 1.8% (392)
- Total population: 22,100
- White: 95.2% (21,043)
- Black or African American: 0.8% (172)
- American Indian and Alaska Native: 0.3% (58)
- Asian: 0.6% (132)
- Native Hawaiian and other Pacific Islander: 0.0% (4)
- 2 or more races: 1.4% (299)
- Some other Race: 1.8% (392)
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Jon Roanhaus // Wikimedia Commons
#40. Franklin County
- Index: 0.093
- Total population: 10,162
- White: 95.1% (9,669)
- Black or African American: 0.2% (25)
- American Indian and Alaska Native: 0.1% (11)
- Asian: 0.0% (0)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 0.3% (30)
- Some other Race: 4.2% (427)
- Total population: 10,162
- White: 95.1% (9,669)
- Black or African American: 0.2% (25)
- American Indian and Alaska Native: 0.1% (11)
- Asian: 0.0% (0)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 0.3% (30)
- Some other Race: 4.2% (427)
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Ann Sullivan-Larson // Wikimedia Commons
#39. Hardin County
- Index: 0.096
- Total population: 17,061
- White: 95.0% (16,212)
- Black or African American: 1.3% (221)
- American Indian and Alaska Native: 1.6% (272)
- Asian: 0.1% (13)
- Native Hawaiian and other Pacific Islander: 0.0% (5)
- 2 or more races: 1.4% (245)
- Some other Race: 0.5% (93)
- Total population: 17,061
- White: 95.0% (16,212)
- Black or African American: 1.3% (221)
- American Indian and Alaska Native: 1.6% (272)
- Asian: 0.1% (13)
- Native Hawaiian and other Pacific Islander: 0.0% (5)
- 2 or more races: 1.4% (245)
- Some other Race: 0.5% (93)
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Skye Marthaler // Wikimedia Commons
#38. Cherokee County
- Index: 0.099
- Total population: 11,343
- White: 94.9% (10,762)
- Black or African American: 2.0% (228)
- American Indian and Alaska Native: 0.3% (39)
- Asian: 0.8% (90)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.9% (218)
- Some other Race: 0.1% (6)
- Total population: 11,343
- White: 94.9% (10,762)
- Black or African American: 2.0% (228)
- American Indian and Alaska Native: 0.3% (39)
- Asian: 0.8% (90)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.9% (218)
- Some other Race: 0.1% (6)
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Chuckmor // Wikimedia Commons
#37. Winnebago County
- Index: 0.099
- Total population: 10,534
- White: 94.9% (9,993)
- Black or African American: 1.7% (181)
- American Indian and Alaska Native: 0.3% (34)
- Asian: 1.3% (134)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.1% (116)
- Some other Race: 0.7% (76)
- Total population: 10,534
- White: 94.9% (9,993)
- Black or African American: 1.7% (181)
- American Indian and Alaska Native: 0.3% (34)
- Asian: 1.3% (134)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.1% (116)
- Some other Race: 0.7% (76)
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Jim Roberts // Wikimedia Commons
#36. Decatur County
- Index: 0.103
- Total population: 7,979
- White: 94.6% (7,552)
- Black or African American: 1.8% (141)
- American Indian and Alaska Native: 0.3% (24)
- Asian: 0.7% (59)
- Native Hawaiian and other Pacific Islander: 0.3% (25)
- 2 or more races: 1.8% (141)
- Some other Race: 0.5% (37)
- Total population: 7,979
- White: 94.6% (7,552)
- Black or African American: 1.8% (141)
- American Indian and Alaska Native: 0.3% (24)
- Asian: 0.7% (59)
- Native Hawaiian and other Pacific Islander: 0.3% (25)
- 2 or more races: 1.8% (141)
- Some other Race: 0.5% (37)
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Phinn // Wikimedia Commons
#35. Emmet County
- Index: 0.104
- Total population: 9,438
- White: 94.6% (8,929)
- Black or African American: 2.1% (199)
- American Indian and Alaska Native: 0.2% (16)
- Asian: 0.3% (24)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.7% (158)
- Some other Race: 1.2% (112)
- Total population: 9,438
- White: 94.6% (8,929)
- Black or African American: 2.1% (199)
- American Indian and Alaska Native: 0.2% (16)
- Asian: 0.3% (24)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.7% (158)
- Some other Race: 1.2% (112)
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Judd Furlong // Wikimedia Commons
#34. Montgomery County
- Index: 0.104
- Total population: 10,053
- White: 94.6% (9,509)
- Black or African American: 0.1% (11)
- American Indian and Alaska Native: 0.9% (86)
- Asian: 0.2% (17)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.8% (185)
- Some other Race: 2.4% (245)
- Total population: 10,053
- White: 94.6% (9,509)
- Black or African American: 0.1% (11)
- American Indian and Alaska Native: 0.9% (86)
- Asian: 0.2% (17)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.8% (185)
- Some other Race: 2.4% (245)
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Jared Winkler // Wikimedia Commons
#33. Taylor County
- Index: 0.104
- Total population: 6,167
- White: 94.6% (5,833)
- Black or African American: 0.0% (1)
- American Indian and Alaska Native: 0.2% (14)
- Asian: 1.0% (63)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.6% (99)
- Some other Race: 2.5% (157)
- Total population: 6,167
- White: 94.6% (5,833)
- Black or African American: 0.0% (1)
- American Indian and Alaska Native: 0.2% (14)
- Asian: 1.0% (63)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.6% (99)
- Some other Race: 2.5% (157)
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Josejuan05 // Wikimedia Commons
#32. Sioux County
- Index: 0.105
- Total population: 34,827
- White: 94.6% (32,930)
- Black or African American: 0.4% (122)
- American Indian and Alaska Native: 0.3% (94)
- Asian: 0.7% (257)
- Native Hawaiian and other Pacific Islander: 0.0% (16)
- 2 or more races: 1.7% (595)
- Some other Race: 2.3% (813)
- Total population: 34,827
- White: 94.6% (32,930)
- Black or African American: 0.4% (122)
- American Indian and Alaska Native: 0.3% (94)
- Asian: 0.7% (257)
- Native Hawaiian and other Pacific Islander: 0.0% (16)
- 2 or more races: 1.7% (595)
- Some other Race: 2.3% (813)
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Scott Romine // Wikimedia Commons
#31. Plymouth County
- Index: 0.106
- Total population: 25,068
- White: 94.5% (23,694)
- Black or African American: 1.0% (244)
- American Indian and Alaska Native: 0.5% (117)
- Asian: 0.7% (163)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.1% (268)
- Some other Race: 2.3% (582)
- Total population: 25,068
- White: 94.5% (23,694)
- Black or African American: 1.0% (244)
- American Indian and Alaska Native: 0.5% (117)
- Asian: 0.7% (163)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.1% (268)
- Some other Race: 2.3% (582)
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Coasterlover1994 // Wikimedia Commons
#30. Osceola County
- Index: 0.107
- Total population: 6,052
- White: 94.5% (5,717)
- Black or African American: 1.3% (76)
- American Indian and Alaska Native: 0.3% (21)
- Asian: 0.1% (8)
- Native Hawaiian and other Pacific Islander: 0.0% (3)
- 2 or more races: 1.7% (100)
- Some other Race: 2.1% (127)
- Total population: 6,052
- White: 94.5% (5,717)
- Black or African American: 1.3% (76)
- American Indian and Alaska Native: 0.3% (21)
- Asian: 0.1% (8)
- Native Hawaiian and other Pacific Islander: 0.0% (3)
- 2 or more races: 1.7% (100)
- Some other Race: 2.1% (127)
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Dan Breyfogle // Wikimedia Commons
#29. Cerro Gordo County
- Index: 0.115
- Total population: 42,834
- White: 94.1% (40,288)
- Black or African American: 1.7% (747)
- American Indian and Alaska Native: 0.5% (215)
- Asian: 1.1% (491)
- Native Hawaiian and other Pacific Islander: 0.1% (51)
- 2 or more races: 1.9% (793)
- Some other Race: 0.6% (249)
- Total population: 42,834
- White: 94.1% (40,288)
- Black or African American: 1.7% (747)
- American Indian and Alaska Native: 0.5% (215)
- Asian: 1.1% (491)
- Native Hawaiian and other Pacific Islander: 0.1% (51)
- 2 or more races: 1.9% (793)
- Some other Race: 0.6% (249)
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Jim Roberts // Wikimedia Commons
#28. Floyd County
- Index: 0.116
- Total population: 15,786
- White: 94.0% (14,832)
- Black or African American: 1.7% (271)
- American Indian and Alaska Native: 0.6% (97)
- Asian: 1.5% (237)
- Native Hawaiian and other Pacific Islander: 0.2% (24)
- 2 or more races: 1.8% (283)
- Some other Race: 0.3% (42)
- Total population: 15,786
- White: 94.0% (14,832)
- Black or African American: 1.7% (271)
- American Indian and Alaska Native: 0.6% (97)
- Asian: 1.5% (237)
- Native Hawaiian and other Pacific Islander: 0.2% (24)
- 2 or more races: 1.8% (283)
- Some other Race: 0.3% (42)
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Ann Sullivan-Larson // Wikimedia Commons
#27. Hamilton County
- Index: 0.118
- Total population: 14,997
- White: 93.9% (14,077)
- Black or African American: 1.3% (202)
- American Indian and Alaska Native: 0.1% (8)
- Asian: 3.0% (455)
- Native Hawaiian and other Pacific Islander: 0.2% (32)
- 2 or more races: 0.1% (22)
- Some other Race: 1.3% (201)
- Total population: 14,997
- White: 93.9% (14,077)
- Black or African American: 1.3% (202)
- American Indian and Alaska Native: 0.1% (8)
- Asian: 3.0% (455)
- Native Hawaiian and other Pacific Islander: 0.2% (32)
- 2 or more races: 0.1% (22)
- Some other Race: 1.3% (201)
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Smallbones // Wikimedia Commons
#26. Poweshiek County
- Index: 0.118
- Total population: 18,388
- White: 93.9% (17,261)
- Black or African American: 1.9% (354)
- American Indian and Alaska Native: 0.0% (2)
- Asian: 2.1% (391)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.6% (286)
- Some other Race: 0.5% (94)
- Total population: 18,388
- White: 93.9% (17,261)
- Black or African American: 1.9% (354)
- American Indian and Alaska Native: 0.0% (2)
- Asian: 2.1% (391)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.6% (286)
- Some other Race: 0.5% (94)
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Jim Roberts // Wikimedia Commons
#25. Page County
- Index: 0.120
- Total population: 15,268
- White: 93.7% (14,313)
- Black or African American: 2.0% (305)
- American Indian and Alaska Native: 0.5% (79)
- Asian: 1.0% (152)
- Native Hawaiian and other Pacific Islander: 0.1% (19)
- 2 or more races: 2.2% (335)
- Some other Race: 0.4% (65)
- Total population: 15,268
- White: 93.7% (14,313)
- Black or African American: 2.0% (305)
- American Indian and Alaska Native: 0.5% (79)
- Asian: 1.0% (152)
- Native Hawaiian and other Pacific Islander: 0.1% (19)
- 2 or more races: 2.2% (335)
- Some other Race: 0.4% (65)
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Robert Thall // Wikimedia Commons
#24. Lee County
- Index: 0.122
- Total population: 34,227
- White: 93.7% (32,054)
- Black or African American: 2.8% (946)
- American Indian and Alaska Native: 0.2% (83)
- Asian: 0.6% (213)
- Native Hawaiian and other Pacific Islander: 0.0% (6)
- 2 or more races: 2.2% (744)
- Some other Race: 0.5% (181)
- Total population: 34,227
- White: 93.7% (32,054)
- Black or African American: 2.8% (946)
- American Indian and Alaska Native: 0.2% (83)
- Asian: 0.6% (213)
- Native Hawaiian and other Pacific Islander: 0.0% (6)
- 2 or more races: 2.2% (744)
- Some other Race: 0.5% (181)
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Richc80 // Wikimedia Commons
#23. Clinton County
- Index: 0.122
- Total population: 46,909
- White: 93.6% (43,921)
- Black or African American: 2.8% (1,320)
- American Indian and Alaska Native: 0.3% (141)
- Asian: 0.7% (326)
- Native Hawaiian and other Pacific Islander: 0.0% (2)
- 2 or more races: 2.3% (1,087)
- Some other Race: 0.2% (112)
- Total population: 46,909
- White: 93.6% (43,921)
- Black or African American: 2.8% (1,320)
- American Indian and Alaska Native: 0.3% (141)
- Asian: 0.7% (326)
- Native Hawaiian and other Pacific Islander: 0.0% (2)
- 2 or more races: 2.3% (1,087)
- Some other Race: 0.2% (112)
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Ann Sullivan-Larson // Wikimedia Commons
#22. Wright County
- Index: 0.125
- Total population: 12,739
- White: 93.4% (11,901)
- Black or African American: 0.4% (49)
- American Indian and Alaska Native: 0.0% (3)
- Asian: 0.5% (67)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.6% (201)
- Some other Race: 4.1% (518)
- Total population: 12,739
- White: 93.4% (11,901)
- Black or African American: 0.4% (49)
- American Indian and Alaska Native: 0.0% (3)
- Asian: 0.5% (67)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 1.6% (201)
- Some other Race: 4.1% (518)
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Skinzfan23 // Wikimedia Commons
#21. Pottawattamie County
- Index: 0.135
- Total population: 93,393
- White: 93.0% (86,816)
- Black or African American: 1.8% (1,638)
- American Indian and Alaska Native: 0.4% (355)
- Asian: 0.8% (728)
- Native Hawaiian and other Pacific Islander: 0.0% (10)
- 2 or more races: 1.9% (1,804)
- Some other Race: 2.2% (2,042)
- Total population: 93,393
- White: 93.0% (86,816)
- Black or African American: 1.8% (1,638)
- American Indian and Alaska Native: 0.4% (355)
- Asian: 0.8% (728)
- Native Hawaiian and other Pacific Islander: 0.0% (10)
- 2 or more races: 1.9% (1,804)
- Some other Race: 2.2% (2,042)
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FluffyGryphon // Wikimedia Commons
#20. Dubuque County
- Index: 0.141
- Total population: 96,982
- White: 92.6% (89,785)
- Black or African American: 3.5% (3,440)
- American Indian and Alaska Native: 0.3% (250)
- Asian: 1.1% (1,050)
- Native Hawaiian and other Pacific Islander: 0.5% (509)
- 2 or more races: 1.5% (1,471)
- Some other Race: 0.5% (477)
- Total population: 96,982
- White: 92.6% (89,785)
- Black or African American: 3.5% (3,440)
- American Indian and Alaska Native: 0.3% (250)
- Asian: 1.1% (1,050)
- Native Hawaiian and other Pacific Islander: 0.5% (509)
- 2 or more races: 1.5% (1,471)
- Some other Race: 0.5% (477)
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Billwhittaker // Wikimedia Commons
#19. Henry County
- Index: 0.158
- Total population: 19,941
- White: 91.6% (18,273)
- Black or African American: 2.2% (444)
- American Indian and Alaska Native: 0.2% (35)
- Asian: 2.6% (526)
- Native Hawaiian and other Pacific Islander: 0.0% (9)
- 2 or more races: 2.6% (519)
- Some other Race: 0.7% (135)
- Total population: 19,941
- White: 91.6% (18,273)
- Black or African American: 2.2% (444)
- American Indian and Alaska Native: 0.2% (35)
- Asian: 2.6% (526)
- Native Hawaiian and other Pacific Islander: 0.0% (9)
- 2 or more races: 2.6% (519)
- Some other Race: 0.7% (135)
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Bill Whittaker // Wikimedia Commons
#18. Webster County
- Index: 0.176
- Total population: 36,545
- White: 90.6% (33,123)
- Black or African American: 4.7% (1,727)
- American Indian and Alaska Native: 0.3% (119)
- Asian: 1.4% (501)
- Native Hawaiian and other Pacific Islander: 0.0% (5)
- 2 or more races: 1.8% (649)
- Some other Race: 1.2% (421)
- Total population: 36,545
- White: 90.6% (33,123)
- Black or African American: 4.7% (1,727)
- American Indian and Alaska Native: 0.3% (119)
- Asian: 1.4% (501)
- Native Hawaiian and other Pacific Islander: 0.0% (5)
- 2 or more races: 1.8% (649)
- Some other Race: 1.2% (421)
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Stephen Matthew Milligan // Wikimedia Commons
#17. Dallas County
- Index: 0.177
- Total population: 87,099
- White: 90.6% (78,883)
- Black or African American: 1.9% (1,654)
- American Indian and Alaska Native: 0.1% (98)
- Asian: 4.5% (3,928)
- Native Hawaiian and other Pacific Islander: 0.1% (83)
- 2 or more races: 2.0% (1,773)
- Some other Race: 0.8% (680)
- Total population: 87,099
- White: 90.6% (78,883)
- Black or African American: 1.9% (1,654)
- American Indian and Alaska Native: 0.1% (98)
- Asian: 4.5% (3,928)
- Native Hawaiian and other Pacific Islander: 0.1% (83)
- 2 or more races: 2.0% (1,773)
- Some other Race: 0.8% (680)
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Thug outlaw69 // Wikimedia Commons
#16. Muscatine County
- Index: 0.181
- Total population: 42,889
- White: 90.4% (38,753)
- Black or African American: 2.5% (1,065)
- American Indian and Alaska Native: 0.2% (87)
- Asian: 0.9% (388)
- Native Hawaiian and other Pacific Islander: 0.0% (11)
- 2 or more races: 2.9% (1,225)
- Some other Race: 3.2% (1,360)
- Total population: 42,889
- White: 90.4% (38,753)
- Black or African American: 2.5% (1,065)
- American Indian and Alaska Native: 0.2% (87)
- Asian: 0.9% (388)
- Native Hawaiian and other Pacific Islander: 0.0% (11)
- 2 or more races: 2.9% (1,225)
- Some other Race: 3.2% (1,360)
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USFWSmidwest // Wikimedia Commons
#15. Louisa County
- Index: 0.181
- Total population: 11,178
- White: 90.3% (10,097)
- Black or African American: 1.1% (126)
- American Indian and Alaska Native: 0.9% (96)
- Asian: 3.4% (377)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 0.9% (100)
- Some other Race: 3.4% (382)
- Total population: 11,178
- White: 90.3% (10,097)
- Black or African American: 1.1% (126)
- American Indian and Alaska Native: 0.9% (96)
- Asian: 3.4% (377)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 0.9% (100)
- Some other Race: 3.4% (382)
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Ian Poellet // Wikimedia Commons
#14. Des Moines County
- Index: 0.183
- Total population: 39,386
- White: 90.1% (35,502)
- Black or African American: 5.7% (2,258)
- American Indian and Alaska Native: 0.2% (78)
- Asian: 0.8% (302)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 2.9% (1,150)
- Some other Race: 0.2% (96)
- Total population: 39,386
- White: 90.1% (35,502)
- Black or African American: 5.7% (2,258)
- American Indian and Alaska Native: 0.2% (78)
- Asian: 0.8% (302)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 2.9% (1,150)
- Some other Race: 0.2% (96)
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Jim Roberts // Wikimedia Commons
#13. Linn County
- Index: 0.221
- Total population: 223,861
- White: 88.0% (197,046)
- Black or African American: 5.5% (12,389)
- American Indian and Alaska Native: 0.2% (493)
- Asian: 2.3% (5,086)
- Native Hawaiian and other Pacific Islander: 0.1% (313)
- 2 or more races: 3.1% (6,828)
- Some other Race: 0.8% (1,706)
- Total population: 223,861
- White: 88.0% (197,046)
- Black or African American: 5.5% (12,389)
- American Indian and Alaska Native: 0.2% (493)
- Asian: 2.3% (5,086)
- Native Hawaiian and other Pacific Islander: 0.1% (313)
- 2 or more races: 3.1% (6,828)
- Some other Race: 0.8% (1,706)
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Bill Whittaker // Wikimedia Commons
#12. Tama County
- Index: 0.222
- Total population: 17,032
- White: 87.8% (14,952)
- Black or African American: 0.9% (157)
- American Indian and Alaska Native: 8.4% (1,438)
- Asian: 0.5% (78)
- Native Hawaiian and other Pacific Islander: 0.0% (4)
- 2 or more races: 1.0% (178)
- Some other Race: 1.3% (225)
- Total population: 17,032
- White: 87.8% (14,952)
- Black or African American: 0.9% (157)
- American Indian and Alaska Native: 8.4% (1,438)
- Asian: 0.5% (78)
- Native Hawaiian and other Pacific Islander: 0.0% (4)
- 2 or more races: 1.0% (178)
- Some other Race: 1.3% (225)
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en:User:Cburnett // Wikimedia Commons
#11. Wapello County
- Index: 0.233
- Total population: 35,141
- White: 87.3% (30,687)
- Black or African American: 3.6% (1,248)
- American Indian and Alaska Native: 0.1% (36)
- Asian: 1.2% (432)
- Native Hawaiian and other Pacific Islander: 0.7% (240)
- 2 or more races: 2.0% (704)
- Some other Race: 5.1% (1,794)
- Total population: 35,141
- White: 87.3% (30,687)
- Black or African American: 3.6% (1,248)
- American Indian and Alaska Native: 0.1% (36)
- Asian: 1.2% (432)
- Native Hawaiian and other Pacific Islander: 0.7% (240)
- 2 or more races: 2.0% (704)
- Some other Race: 5.1% (1,794)
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Carl Wycoff // Wikimedia Commons
#10. Story County
- Index: 0.252
- Total population: 96,941
- White: 86.1% (83,428)
- Black or African American: 2.3% (2,213)
- American Indian and Alaska Native: 0.2% (223)
- Asian: 8.0% (7,795)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 2.5% (2,421)
- Some other Race: 0.9% (861)
- Total population: 96,941
- White: 86.1% (83,428)
- Black or African American: 2.3% (2,213)
- American Indian and Alaska Native: 0.2% (223)
- Asian: 8.0% (7,795)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 2.5% (2,421)
- Some other Race: 0.9% (861)
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Daniel Hartwig // Wikimedia Commons
#9. Marshall County
- Index: 0.257
- Total population: 39,964
- White: 85.8% (34,303)
- Black or African American: 1.3% (502)
- American Indian and Alaska Native: 0.3% (105)
- Asian: 3.7% (1,474)
- Native Hawaiian and other Pacific Islander: 0.0% (15)
- 2 or more races: 2.3% (913)
- Some other Race: 6.6% (2,652)
- Total population: 39,964
- White: 85.8% (34,303)
- Black or African American: 1.3% (502)
- American Indian and Alaska Native: 0.3% (105)
- Asian: 3.7% (1,474)
- Native Hawaiian and other Pacific Islander: 0.0% (15)
- 2 or more races: 2.3% (913)
- Some other Race: 6.6% (2,652)
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Joe Elliott // Wikimedia Commons
#8. Crawford County
- Index: 0.258
- Total population: 17,034
- White: 85.8% (14,619)
- Black or African American: 2.8% (477)
- American Indian and Alaska Native: 0.6% (107)
- Asian: 2.1% (353)
- Native Hawaiian and other Pacific Islander: 0.2% (27)
- 2 or more races: 2.1% (364)
- Some other Race: 6.4% (1,087)
- Total population: 17,034
- White: 85.8% (14,619)
- Black or African American: 2.8% (477)
- American Indian and Alaska Native: 0.6% (107)
- Asian: 2.1% (353)
- Native Hawaiian and other Pacific Islander: 0.2% (27)
- 2 or more races: 2.1% (364)
- Some other Race: 6.4% (1,087)
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formulanone // Wikimedia Commons
#7. Scott County
- Index: 0.260
- Total population: 172,446
- White: 85.6% (147,646)
- Black or African American: 7.5% (12,954)
- American Indian and Alaska Native: 0.3% (543)
- Asian: 2.7% (4,698)
- Native Hawaiian and other Pacific Islander: 0.0% (39)
- 2 or more races: 3.1% (5,276)
- Some other Race: 0.7% (1,290)
- Total population: 172,446
- White: 85.6% (147,646)
- Black or African American: 7.5% (12,954)
- American Indian and Alaska Native: 0.3% (543)
- Asian: 2.7% (4,698)
- Native Hawaiian and other Pacific Islander: 0.0% (39)
- 2 or more races: 3.1% (5,276)
- Some other Race: 0.7% (1,290)
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Tony Webster // Wikicommons
#6. Woodbury County
- Index: 0.261
- Total population: 102,586
- White: 85.7% (87,959)
- Black or African American: 3.6% (3,706)
- American Indian and Alaska Native: 2.0% (2,010)
- Asian: 2.8% (2,908)
- Native Hawaiian and other Pacific Islander: 0.3% (326)
- 2 or more races: 3.5% (3,565)
- Some other Race: 2.1% (2,112)
- Total population: 102,586
- White: 85.7% (87,959)
- Black or African American: 3.6% (3,706)
- American Indian and Alaska Native: 2.0% (2,010)
- Asian: 2.8% (2,908)
- Native Hawaiian and other Pacific Islander: 0.3% (326)
- 2 or more races: 3.5% (3,565)
- Some other Race: 2.1% (2,112)
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Katie Haugland Bowen // Flickr
#5. Polk County
- Index: 0.286
- Total population: 479,612
- White: 84.0% (402,987)
- Black or African American: 6.8% (32,518)
- American Indian and Alaska Native: 0.3% (1,530)
- Asian: 4.6% (21,909)
- Native Hawaiian and other Pacific Islander: 0.1% (438)
- 2 or more races: 2.9% (13,774)
- Some other Race: 1.3% (6,456)
- Total population: 479,612
- White: 84.0% (402,987)
- Black or African American: 6.8% (32,518)
- American Indian and Alaska Native: 0.3% (1,530)
- Asian: 4.6% (21,909)
- Native Hawaiian and other Pacific Islander: 0.1% (438)
- 2 or more races: 2.9% (13,774)
- Some other Race: 1.3% (6,456)
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David Wilson // Wikimedia
#4. Black Hawk County
- Index: 0.289
- Total population: 132,393
- White: 83.7% (110,821)
- Black or African American: 9.5% (12,534)
- American Indian and Alaska Native: 0.4% (557)
- Asian: 2.4% (3,145)
- Native Hawaiian and other Pacific Islander: 0.3% (352)
- 2 or more races: 2.3% (3,040)
- Some other Race: 1.5% (1,944)
- Total population: 132,393
- White: 83.7% (110,821)
- Black or African American: 9.5% (12,534)
- American Indian and Alaska Native: 0.4% (557)
- Asian: 2.4% (3,145)
- Native Hawaiian and other Pacific Islander: 0.3% (352)
- 2 or more races: 2.3% (3,040)
- Some other Race: 1.5% (1,944)
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en:User:Cburnett // Wikimedia Commons
#3. Jefferson County
- Index: 0.299
- Total population: 18,148
- White: 83.2% (15,104)
- Black or African American: 7.2% (1,305)
- American Indian and Alaska Native: 0.0% (3)
- Asian: 4.4% (790)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 3.8% (694)
- Some other Race: 1.4% (252)
- Total population: 18,148
- White: 83.2% (15,104)
- Black or African American: 7.2% (1,305)
- American Indian and Alaska Native: 0.0% (3)
- Asian: 4.4% (790)
- Native Hawaiian and other Pacific Islander: 0.0% (0)
- 2 or more races: 3.8% (694)
- Some other Race: 1.4% (252)
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Billwhittaker // Wikimedia Commons
#2. Johnson County
- Index: 0.322
- Total population: 148,577
- White: 81.7% (121,408)
- Black or African American: 7.3% (10,815)
- American Indian and Alaska Native: 0.2% (288)
- Asian: 6.2% (9,271)
- Native Hawaiian and other Pacific Islander: 0.1% (102)
- 2 or more races: 2.3% (3,454)
- Some other Race: 2.2% (3,239)
- Total population: 148,577
- White: 81.7% (121,408)
- Black or African American: 7.3% (10,815)
- American Indian and Alaska Native: 0.2% (288)
- Asian: 6.2% (9,271)
- Native Hawaiian and other Pacific Islander: 0.1% (102)
- 2 or more races: 2.3% (3,454)
- Some other Race: 2.2% (3,239)
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Scott A. Miller // Wikimedia Commons
#1. Buena Vista County
- Index: 0.390
- Total population: 20,058
- White: 77.0% (15,451)
- Black or African American: 2.5% (505)
- American Indian and Alaska Native: 0.0% (5)
- Asian: 10.1% (2,020)
- Native Hawaiian and other Pacific Islander: 1.5% (299)
- 2 or more races: 1.4% (285)
- Some other Race: 7.4% (1,493)
- Total population: 20,058
- White: 77.0% (15,451)
- Black or African American: 2.5% (505)
- American Indian and Alaska Native: 0.0% (5)
- Asian: 10.1% (2,020)
- Native Hawaiian and other Pacific Islander: 1.5% (299)
- 2 or more races: 1.4% (285)
- Some other Race: 7.4% (1,493)
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