Counties with the highest COVID-19 vaccination rate in Iowa

Written by:
October 17, 2022
Billwhittaker // Wikimedia Commons

Counties with the highest COVID-19 vaccination rate in Iowa

The vaccine deployment in December 2020 signaled a turning point in the COVID-19 pandemic. By the end of May 2021, 40% of the U.S. population was fully vaccinated. But as vaccination rates lagged over the summer, new surges of COVID-19 came, including Delta in the summer of 2021, and now the Omicron variant, which comprises the majority of cases in the U.S.

The United States as of Oct. 28 reached over 1 million COVID-19-related deaths and 97.4 million COVID-19 cases, according to Johns Hopkins University. Currently, 68.4% of the population is fully vaccinated, and 7.3% of people have received the most recent bivalent booster dose.

Stacker compiled a list of the counties with highest COVID-19 vaccination rates in Iowa using data from the U.S. Department of Health & Human Services and Covid Act Now. Counties are ranked by the highest vaccination rate as of Oct. 27, 2022. Due to inconsistencies in reporting, some counties do not have vaccination data available. Case count data based on Oct. 13 numbers reported by the Department of Health and Human Services. Keep reading to see whether your county ranks among the highest COVID-19 vaccination rates in your state.

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Woodard // Wikimedia Commons

#50. Fayette County

- Population that is fully vaccinated: 55.6% (10,917 fully vaccinated)
--- 12.0% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 427 (84 total deaths)
--- 32.2% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,056 (4,727 total cases)
--- 12.0% less cases per 100k residents than Iowa
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Billwhittaker // Wikimedia Commons

#49. Henry County

- Population that is fully vaccinated: 55.6% (11,098 fully vaccinated)
--- 12.0% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 401 (80 total deaths)
--- 24.1% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 31,227 (6,231 total cases)
--- 14.2% more cases per 100k residents than Iowa
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Jon Roanhaus // Wikimedia Commons

#48. Franklin County

- Population that is fully vaccinated: 55.7% (5,606 fully vaccinated)
--- 11.9% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 467 (47 total deaths)
--- 44.6% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,934 (2,813 total cases)
--- 2.1% more cases per 100k residents than Iowa
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Kevin Schuchmann // Wikimedia Commons

#47. Delaware County

- Population that is fully vaccinated: 55.8% (9,490 fully vaccinated)
--- 11.7% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 406 (69 total deaths)
--- 25.7% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,653 (4,534 total cases)
--- 2.5% less cases per 100k residents than Iowa
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Richc80 // Wikimedia Commons

#46. Clinton County

- Population that is fully vaccinated: 55.9% (25,965 fully vaccinated)
--- 11.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 349 (162 total deaths)
--- 8.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 28,627 (13,291 total cases)
--- 4.7% more cases per 100k residents than Iowa
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Jason McLaren // Wikimedia Commons

#45. Clarke County

- Population that is fully vaccinated: 56.0% (5,257 fully vaccinated)
--- 11.4% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 436 (41 total deaths)
--- 35.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,227 (2,558 total cases)
--- 0.4% less cases per 100k residents than Iowa
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Bobak Ha'Eri // Wikimedia Commons

#44. Chickasaw County

- Population that is fully vaccinated: 56.0% (6,685 fully vaccinated)
--- 11.4% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 285 (34 total deaths)
--- 11.8% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,316 (3,021 total cases)
--- 7.4% less cases per 100k residents than Iowa
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Ann Sullivan-Larson // Wikimedia Commons

#43. Hardin County

- Population that is fully vaccinated: 56.8% (9,569 fully vaccinated)
--- 10.1% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 392 (66 total deaths)
--- 21.4% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 28,387 (4,782 total cases)
--- 3.8% more cases per 100k residents than Iowa
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Jason McLaren // Wikimedia Commons

#42. Adams County

- Population that is fully vaccinated: 57.1% (2,058 fully vaccinated)
--- 9.7% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 389 (14 total deaths)
--- 20.4% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,125 (905 total cases)
--- 8.1% less cases per 100k residents than Iowa
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Farragutful // Wikimedia Commons

#41. Washington County

- Population that is fully vaccinated: 58.1% (12,769 fully vaccinated)
--- 8.1% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 378 (83 total deaths)
--- 17.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 29,342 (6,445 total cases)
--- 7.3% more cases per 100k residents than Iowa
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Judd Furlong // Wikimedia Commons

#40. Montgomery County

- Population that is fully vaccinated: 58.4% (5,795 fully vaccinated)
--- 7.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 575 (57 total deaths)
--- 78.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,846 (2,464 total cases)
--- 9.2% less cases per 100k residents than Iowa
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Billwhittaker // Wikimedia Commons

#39. Butler County

- Population that is fully vaccinated: 58.4% (8,438 fully vaccinated)
--- 7.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 388 (56 total deaths)
--- 20.1% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,099 (3,624 total cases)
--- 8.2% less cases per 100k residents than Iowa
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Tony Webster // Wikicommons

#38. Woodbury County

- Population that is fully vaccinated: 58.4% (60,198 fully vaccinated)
--- 7.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 338 (349 total deaths)
--- 4.6% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 30,844 (31,802 total cases)
--- 12.8% more cases per 100k residents than Iowa
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Jared Winkler // Wikimedia Commons

#37. Mills County

- Population that is fully vaccinated: 58.6% (8,854 fully vaccinated)
--- 7.3% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 298 (45 total deaths)
--- 7.7% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,217 (3,810 total cases)
--- 7.8% less cases per 100k residents than Iowa
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Ann Sullivan-Larson // Wikimedia Commons

#36. Wright County

- Population that is fully vaccinated: 58.8% (7,381 fully vaccinated)
--- 7.0% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 549 (69 total deaths)
--- 70.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 31,118 (3,909 total cases)
--- 13.8% more cases per 100k residents than Iowa
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Bill Whittaker // Wikimedia Commons

#35. Webster County

- Population that is fully vaccinated: 58.8% (21,107 fully vaccinated)
--- 7.0% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 496 (178 total deaths)
--- 53.6% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 32,322 (11,605 total cases)
--- 18.2% more cases per 100k residents than Iowa
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Smallbones // Wikimedia Commons

#34. Cass County

- Population that is fully vaccinated: 59.3% (7,614 fully vaccinated)
--- 6.2% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 639 (82 total deaths)
--- 97.8% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,478 (3,142 total cases)
--- 10.5% less cases per 100k residents than Iowa
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Jason McLaren // Wikimedia Commons

#33. Greene County

- Population that is fully vaccinated: 59.5% (5,292 fully vaccinated)
--- 5.9% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 293 (26 total deaths)
--- 9.3% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 21,816 (1,939 total cases)
--- 20.2% less cases per 100k residents than Iowa
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Nst101 // Wikimedia Commons

#32. Guthrie County

- Population that is fully vaccinated: 59.5% (6,362 fully vaccinated)
--- 5.9% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 440 (47 total deaths)
--- 36.2% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,876 (2,659 total cases)
--- 9.0% less cases per 100k residents than Iowa
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Nst101 // Wikimedia Commons

#31. Audubon County

- Population that is fully vaccinated: 59.6% (3,273 fully vaccinated)
--- 5.7% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 418 (23 total deaths)
--- 29.4% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,616 (1,243 total cases)
--- 17.3% less cases per 100k residents than Iowa
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Kevin Schuchmann // Wikimedia Commons

#30. Jones County

- Population that is fully vaccinated: 59.6% (12,316 fully vaccinated)
--- 5.7% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 382 (79 total deaths)
--- 18.3% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 29,810 (6,165 total cases)
--- 9.0% more cases per 100k residents than Iowa
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en:User:Cburnett // Wikimedia Commons

#29. Jasper County

- Population that is fully vaccinated: 59.6% (22,171 fully vaccinated)
--- 5.7% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 320 (119 total deaths)
--- 0.9% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,626 (9,901 total cases)
--- 2.6% less cases per 100k residents than Iowa
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Skinzfan23 // Wikimedia Commons

#28. Pottawattamie County

- Population that is fully vaccinated: 59.7% (55,644 fully vaccinated)
--- 5.5% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 360 (336 total deaths)
--- 11.5% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 28,804 (26,847 total cases)
--- 5.3% more cases per 100k residents than Iowa
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#27. Benton County

- Population that is fully vaccinated: 60.3% (15,472 fully vaccinated)
--- 4.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 312 (80 total deaths)
--- 3.4% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,621 (6,827 total cases)
--- 2.7% less cases per 100k residents than Iowa
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Smallbones // Wikimedia Commons

#26. Poweshiek County

- Population that is fully vaccinated: 60.4% (11,173 fully vaccinated)
--- 4.4% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 346 (64 total deaths)
--- 7.1% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,698 (4,385 total cases)
--- 13.4% less cases per 100k residents than Iowa
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Jim Roberts // Wikimedia Commons

#25. Shelby County

- Population that is fully vaccinated: 60.6% (6,936 fully vaccinated)
--- 4.1% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 463 (53 total deaths)
--- 43.3% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,235 (3,005 total cases)
--- 4.1% less cases per 100k residents than Iowa
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TheCatalyst31 // Wikimedia Commons

#24. Dickinson County

- Population that is fully vaccinated: 60.6% (10,466 fully vaccinated)
--- 4.1% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 440 (76 total deaths)
--- 36.2% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,486 (4,571 total cases)
--- 3.2% less cases per 100k residents than Iowa
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Nst101 // Wikimedia Commons

#23. Calhoun County

- Population that is fully vaccinated: 60.7% (5,867 fully vaccinated)
--- 4.0% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 269 (26 total deaths)
--- 16.7% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 30,296 (2,929 total cases)
--- 10.8% more cases per 100k residents than Iowa
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#22. Warren County

- Population that is fully vaccinated: 61.2% (31,501 fully vaccinated)
--- 3.2% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 282 (145 total deaths)
--- 12.7% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,107 (13,951 total cases)
--- 0.9% less cases per 100k residents than Iowa
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Jim Roberts // Wikimedia Commons

#21. Bremer County

- Population that is fully vaccinated: 61.3% (15,359 fully vaccinated)
--- 3.0% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 339 (85 total deaths)
--- 5.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,447 (6,127 total cases)
--- 10.6% less cases per 100k residents than Iowa
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Kevin Schuchmann // Wikimedia Commons

#20. Cedar County

- Population that is fully vaccinated: 61.4% (11,432 fully vaccinated)
--- 2.8% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 231 (43 total deaths)
--- 28.5% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,662 (4,780 total cases)
--- 6.2% less cases per 100k residents than Iowa
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David Wilson // Wikimedia

#19. Black Hawk County

- Population that is fully vaccinated: 62.0% (81,308 fully vaccinated)
--- 1.9% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 386 (507 total deaths)
--- 19.5% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 28,286 (37,119 total cases)
--- 3.4% more cases per 100k residents than Iowa
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#18. Muscatine County

- Population that is fully vaccinated: 62.2% (26,558 fully vaccinated)
--- 1.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 323 (138 total deaths)
--- 0.0% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,415 (10,843 total cases)
--- 7.1% less cases per 100k residents than Iowa
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Nst101 // Wikimedia Commons

#17. Carroll County

- Population that is fully vaccinated: 62.8% (12,670 fully vaccinated)
--- 0.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 377 (76 total deaths)
--- 16.7% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,087 (5,462 total cases)
--- 1.0% less cases per 100k residents than Iowa
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Lolwhynot3498 // Wikimedia Commons

#16. Grundy County

- Population that is fully vaccinated: 63.4% (7,755 fully vaccinated)
--- 0.3% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 392 (48 total deaths)
--- 21.4% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,324 (2,853 total cases)
--- 14.7% less cases per 100k residents than Iowa
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formulanone // Wikimedia Commons

#15. Scott County

- Population that is fully vaccinated: 63.4% (109,649 fully vaccinated)
--- 0.3% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 246 (426 total deaths)
--- 23.8% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,099 (46,866 total cases)
--- 0.9% less cases per 100k residents than Iowa
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cwwycoff1 // Wikimedia Commons

#14. Iowa County

- Population that is fully vaccinated: 63.8% (10,319 fully vaccinated)
--- 0.9% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 309 (50 total deaths)
--- 4.3% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,568 (4,138 total cases)
--- 6.5% less cases per 100k residents than Iowa
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Bill Whittaker // Wikimedia Commons

#13. Tama County

- Population that is fully vaccinated: 64.0% (10,786 fully vaccinated)
--- 1.3% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 570 (96 total deaths)
--- 76.5% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,160 (4,409 total cases)
--- 4.4% less cases per 100k residents than Iowa
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Jonathunder // Wikimedia Commons

#12. Winneshiek County

- Population that is fully vaccinated: 64.2% (12,828 fully vaccinated)
--- 1.6% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 275 (55 total deaths)
--- 14.9% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 21,780 (4,354 total cases)
--- 20.4% less cases per 100k residents than Iowa
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Dan Breyfogle // Wikimedia Commons

#11. Cerro Gordo County

- Population that is fully vaccinated: 64.7% (27,474 fully vaccinated)
--- 2.4% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 412 (175 total deaths)
--- 27.6% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 29,001 (12,311 total cases)
--- 6.0% more cases per 100k residents than Iowa
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Carl Wycoff // Wikimedia Commons

#10. Story County

- Population that is fully vaccinated: 64.8% (62,976 fully vaccinated)
--- 2.5% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 99 (96 total deaths)
--- 69.3% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,952 (22,290 total cases)
--- 16.1% less cases per 100k residents than Iowa
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Ann Sullivan-Larson // Wikimedia Commons

#9. Hamilton County

- Population that is fully vaccinated: 64.9% (9,584 fully vaccinated)
--- 2.7% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 535 (79 total deaths)
--- 65.6% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,824 (3,815 total cases)
--- 5.6% less cases per 100k residents than Iowa
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Library of Congress // Wikimedia Commons

#8. Boone County

- Population that is fully vaccinated: 66.0% (17,303 fully vaccinated)
--- 4.4% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 248 (65 total deaths)
--- 23.2% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,774 (6,237 total cases)
--- 13.1% less cases per 100k residents than Iowa
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FluffyGryphon // Wikimedia Commons

#7. Dubuque County

- Population that is fully vaccinated: 66.0% (64,243 fully vaccinated)
--- 4.4% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 322 (313 total deaths)
--- 0.3% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 30,219 (29,406 total cases)
--- 10.5% more cases per 100k residents than Iowa
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Daniel Hartwig // Wikimedia Commons

#6. Marshall County

- Population that is fully vaccinated: 67.9% (26,726 fully vaccinated)
--- 7.4% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 318 (125 total deaths)
--- 1.5% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,395 (10,785 total cases)
--- 0.2% more cases per 100k residents than Iowa
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Jim Roberts // Wikimedia Commons

#5. Linn County

- Population that is fully vaccinated: 68.3% (154,924 fully vaccinated)
--- 8.1% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 277 (628 total deaths)
--- 14.2% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,021 (61,258 total cases)
--- 1.2% less cases per 100k residents than Iowa
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Stephen Matthew Milligan // Wikimedia Commons

#4. Dallas County

- Population that is fully vaccinated: 68.7% (64,219 fully vaccinated)
--- 8.7% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 163 (152 total deaths)
--- 49.5% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,745 (25,929 total cases)
--- 1.4% more cases per 100k residents than Iowa
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Katie Haugland Bowen // Flickr

#3. Polk County

- Population that is fully vaccinated: 69.6% (341,189 fully vaccinated)
--- 10.1% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 239 (1,172 total deaths)
--- 26.0% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 28,922 (141,764 total cases)
--- 5.7% more cases per 100k residents than Iowa
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Scott A. Miller // Wikimedia Commons

#2. Buena Vista County

- Population that is fully vaccinated: 70.6% (13,860 fully vaccinated)
--- 11.7% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 316 (62 total deaths)
--- 2.2% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 34,475 (6,764 total cases)
--- 26.1% more cases per 100k residents than Iowa
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Billwhittaker // Wikimedia Commons

#1. Johnson County

- Population that is fully vaccinated: 75.5% (114,118 fully vaccinated)
--- 19.5% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 110 (167 total deaths)
--- 65.9% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 28,248 (42,694 total cases)
--- 3.3% more cases per 100k residents than Iowa

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