Counties with the highest COVID-19 vaccination rate in Iowa

Written by:
May 14, 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 May 13 reached 999,298 COVID-19-related deaths and nearly 82.3 million COVID-19 cases, according to Johns Hopkins University. Currently, 66.4% of the population is fully vaccinated, and 46.3% of vaccinated people have received booster doses.

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 May 12, 2022. Due to inconsistencies in reporting, some counties do not have vaccination data available. Keep reading to see whether your county ranks among the highest COVID-19 vaccination rates in your state.

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en:User:Cburnett // Wikimedia Commons

#50. Madison County

- Population that is fully vaccinated: 54.2% (8,858 fully vaccinated)
--- 12.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 245 (40 total deaths)
--- 19.1% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 19,470 (3,181 total cases)
--- 20.1% less cases per 100k residents than Iowa
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Woodard // Wikimedia Commons

#49. Fayette County

- Population that is fully vaccinated: 54.7% (10,740 fully vaccinated)
--- 11.8% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 377 (74 total deaths)
--- 24.4% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 20,982 (4,123 total cases)
--- 13.9% less cases per 100k residents than Iowa
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Jon Roanhaus // Wikimedia Commons

#48. Franklin County

- Population that is fully vaccinated: 54.8% (5,514 fully vaccinated)
--- 11.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 417 (42 total deaths)
--- 37.6% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,035 (2,521 total cases)
--- 2.7% more cases per 100k residents than Iowa
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Kevin Schuchmann // Wikimedia Commons

#47. Delaware County

- Population that is fully vaccinated: 54.8% (9,325 fully vaccinated)
--- 11.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 400 (68 total deaths)
--- 32.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,843 (4,056 total cases)
--- 2.2% less cases per 100k residents than Iowa
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Richc80 // Wikimedia Commons

#46. Clinton County

- Population that is fully vaccinated: 54.8% (25,458 fully vaccinated)
--- 11.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 314 (146 total deaths)
--- 3.6% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,101 (11,654 total cases)
--- 3.0% more cases per 100k residents than Iowa
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Jason McLaren // Wikimedia Commons

#45. Clarke County

- Population that is fully vaccinated: 55.1% (5,172 fully vaccinated)
--- 11.1% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 394 (37 total deaths)
--- 30.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,172 (2,271 total cases)
--- 0.8% less cases per 100k residents than Iowa
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Bobak Ha'Eri // Wikimedia Commons

#44. Chickasaw County

- Population that is fully vaccinated: 55.1% (6,580 fully vaccinated)
--- 11.1% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 268 (32 total deaths)
--- 11.6% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,635 (2,701 total cases)
--- 7.1% less cases per 100k residents than Iowa
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Ann Sullivan-Larson // Wikimedia Commons

#43. Hardin County

- Population that is fully vaccinated: 56.2% (9,475 fully vaccinated)
--- 9.4% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 368 (62 total deaths)
--- 21.5% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,576 (4,140 total cases)
--- 0.8% more cases per 100k residents than Iowa
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Jason McLaren // Wikimedia Commons

#42. Adams County

- Population that is fully vaccinated: 56.4% (2,030 fully vaccinated)
--- 9.0% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 389 (14 total deaths)
--- 28.4% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,765 (820 total cases)
--- 6.6% less cases per 100k residents than Iowa
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Jared Winkler // Wikimedia Commons

#41. Mills County

- Population that is fully vaccinated: 56.6% (8,558 fully vaccinated)
--- 8.7% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 271 (41 total deaths)
--- 10.6% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,271 (3,365 total cases)
--- 8.6% less cases per 100k residents than Iowa
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Tony Webster // Wikicommons

#40. Woodbury County

- Population that is fully vaccinated: 56.7% (58,438 fully vaccinated)
--- 8.5% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 329 (339 total deaths)
--- 8.6% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,969 (28,838 total cases)
--- 14.8% more cases per 100k residents than Iowa
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Judd Furlong // Wikimedia Commons

#39. Montgomery County

- Population that is fully vaccinated: 56.8% (5,634 fully vaccinated)
--- 8.4% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 555 (55 total deaths)
--- 83.2% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,345 (2,216 total cases)
--- 8.3% less cases per 100k residents than Iowa
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Farragutful // Wikimedia Commons

#38. Washington County

- Population that is fully vaccinated: 56.9% (12,488 fully vaccinated)
--- 8.2% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 360 (79 total deaths)
--- 18.8% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,864 (5,681 total cases)
--- 6.1% more cases per 100k residents than Iowa
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Billwhittaker // Wikimedia Commons

#37. Butler County

- Population that is fully vaccinated: 57.6% (8,315 fully vaccinated)
--- 7.1% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 367 (53 total deaths)
--- 21.1% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,522 (3,252 total cases)
--- 7.6% less cases per 100k residents than Iowa
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Ann Sullivan-Larson // Wikimedia Commons

#36. Wright County

- Population that is fully vaccinated: 57.7% (7,254 fully vaccinated)
--- 6.9% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 502 (63 total deaths)
--- 65.7% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 28,865 (3,626 total cases)
--- 18.4% more cases per 100k residents than Iowa
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Bill Whittaker // Wikimedia Commons

#35. Webster County

- Population that is fully vaccinated: 57.8% (20,748 fully vaccinated)
--- 6.8% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 457 (164 total deaths)
--- 50.8% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 28,922 (10,384 total cases)
--- 18.7% more cases per 100k residents than Iowa
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Skinzfan23 // Wikimedia Commons

#34. Pottawattamie County

- Population that is fully vaccinated: 57.8% (53,881 fully vaccinated)
--- 6.8% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 342 (319 total deaths)
--- 12.9% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,159 (24,382 total cases)
--- 7.3% more cases per 100k residents than Iowa
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Smallbones // Wikimedia Commons

#33. Cass County

- Population that is fully vaccinated: 58.3% (7,479 fully vaccinated)
--- 6.0% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 608 (78 total deaths)
--- 100.7% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,076 (2,962 total cases)
--- 5.3% less cases per 100k residents than Iowa
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Nst101 // Wikimedia Commons

#32. Audubon County

- Population that is fully vaccinated: 58.4% (3,209 fully vaccinated)
--- 5.8% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 346 (19 total deaths)
--- 14.2% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 20,269 (1,114 total cases)
--- 16.8% less cases per 100k residents than Iowa
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Nst101 // Wikimedia Commons

#31. Guthrie County

- Population that is fully vaccinated: 58.5% (6,254 fully vaccinated)
--- 5.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 430 (46 total deaths)
--- 41.9% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,191 (2,372 total cases)
--- 8.9% less cases per 100k residents than Iowa
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TheCatalyst31 // Wikimedia Commons

#30. Dickinson County

- Population that is fully vaccinated: 58.5% (10,102 fully vaccinated)
--- 5.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 417 (72 total deaths)
--- 37.6% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,989 (4,140 total cases)
--- 1.6% less cases per 100k residents than Iowa
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Jason McLaren // Wikimedia Commons

#29. Greene County

- Population that is fully vaccinated: 58.6% (5,208 fully vaccinated)
--- 5.5% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 236 (21 total deaths)
--- 22.1% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 19,633 (1,745 total cases)
--- 19.4% less cases per 100k residents than Iowa
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Scott Romine // Wikimedia Commons

#28. Benton County

- Population that is fully vaccinated: 58.6% (15,034 fully vaccinated)
--- 5.5% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 300 (77 total deaths)
--- 1.0% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,743 (6,089 total cases)
--- 2.6% less cases per 100k residents than Iowa
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Smallbones // Wikimedia Commons

#27. Poweshiek County

- Population that is fully vaccinated: 58.7% (10,855 fully vaccinated)
--- 5.3% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 330 (61 total deaths)
--- 8.9% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 20,147 (3,728 total cases)
--- 17.3% less cases per 100k residents than Iowa
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Kevin Schuchmann // Wikimedia Commons

#26. Jones County

- Population that is fully vaccinated: 58.7% (12,145 fully vaccinated)
--- 5.3% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 353 (73 total deaths)
--- 16.5% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,648 (5,511 total cases)
--- 9.4% more cases per 100k residents than Iowa
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en:User:Cburnett // Wikimedia Commons

#25. Jasper County

- Population that is fully vaccinated: 58.7% (21,838 fully vaccinated)
--- 5.3% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 296 (110 total deaths)
--- 2.3% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,415 (8,707 total cases)
--- 3.9% less cases per 100k residents than Iowa
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Jim Roberts // Wikimedia Commons

#24. Shelby County

- Population that is fully vaccinated: 59.4% (6,808 fully vaccinated)
--- 4.2% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 437 (50 total deaths)
--- 44.2% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,782 (2,724 total cases)
--- 2.4% less cases per 100k residents than Iowa
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Nst101 // Wikimedia Commons

#23. Calhoun County

- Population that is fully vaccinated: 59.8% (5,780 fully vaccinated)
--- 3.5% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 259 (25 total deaths)
--- 14.5% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,976 (2,608 total cases)
--- 10.7% more cases per 100k residents than Iowa
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Jim Roberts // Wikimedia Commons

#22. Bremer County

- Population that is fully vaccinated: 60.1% (15,069 fully vaccinated)
--- 3.1% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 327 (82 total deaths)
--- 7.9% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,181 (5,559 total cases)
--- 9.0% less cases per 100k residents than Iowa
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Lynn Betts // Wikimedia Commons

#21. Warren County

- Population that is fully vaccinated: 60.1% (30,940 fully vaccinated)
--- 3.1% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 260 (134 total deaths)
--- 14.2% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,465 (12,591 total cases)
--- 0.4% more cases per 100k residents than Iowa
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Kevin Schuchmann // Wikimedia Commons

#20. Cedar County

- Population that is fully vaccinated: 60.3% (11,231 fully vaccinated)
--- 2.7% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 188 (35 total deaths)
--- 38.0% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,553 (4,201 total cases)
--- 7.5% less cases per 100k residents than Iowa
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David Wilson // Wikimedia

#19. Black Hawk County

- Population that is fully vaccinated: 60.4% (79,199 fully vaccinated)
--- 2.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 366 (480 total deaths)
--- 20.8% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,254 (33,140 total cases)
--- 3.6% more cases per 100k residents than Iowa
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Thug outlaw69 // Wikimedia Commons

#18. Muscatine County

- Population that is fully vaccinated: 61.0% (26,026 fully vaccinated)
--- 1.6% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 307 (131 total deaths)
--- 1.3% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,733 (9,699 total cases)
--- 6.7% less cases per 100k residents than Iowa
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formulanone // Wikimedia Commons

#17. Scott County

- Population that is fully vaccinated: 61.2% (105,820 fully vaccinated)
--- 1.3% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 228 (395 total deaths)
--- 24.8% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,949 (41,418 total cases)
--- 1.7% less cases per 100k residents than Iowa
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Nst101 // Wikimedia Commons

#16. Carroll County

- Population that is fully vaccinated: 62.0% (12,495 fully vaccinated)
--- 0.0% lower vaccination rate than Iowa
- Cumulative deaths per 100k: 327 (66 total deaths)
--- 7.9% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,587 (4,958 total cases)
--- 0.9% more cases per 100k residents than Iowa
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Lolwhynot3498 // Wikimedia Commons

#15. Grundy County

- Population that is fully vaccinated: 62.3% (7,619 fully vaccinated)
--- 0.5% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 360 (44 total deaths)
--- 18.8% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 21,060 (2,576 total cases)
--- 13.6% less cases per 100k residents than Iowa
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Jonathunder // Wikimedia Commons

#14. Winneshiek County

- Population that is fully vaccinated: 62.7% (12,538 fully vaccinated)
--- 1.1% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 250 (50 total deaths)
--- 17.5% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 19,539 (3,906 total cases)
--- 19.8% less cases per 100k residents than Iowa
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Bill Whittaker // Wikimedia Commons

#13. Tama County

- Population that is fully vaccinated: 62.8% (10,592 fully vaccinated)
--- 1.3% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 534 (90 total deaths)
--- 76.2% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,288 (3,925 total cases)
--- 4.4% less cases per 100k residents than Iowa
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cwwycoff1 // Wikimedia Commons

#12. Iowa County

- Population that is fully vaccinated: 63.0% (10,196 fully vaccinated)
--- 1.6% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 309 (50 total deaths)
--- 2.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 22,930 (3,711 total cases)
--- 5.9% less cases per 100k residents than Iowa
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Dan Breyfogle // Wikimedia Commons

#11. Cerro Gordo County

- Population that is fully vaccinated: 63.3% (26,883 fully vaccinated)
--- 2.1% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 400 (170 total deaths)
--- 32.0% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 26,280 (11,156 total cases)
--- 7.8% more cases per 100k residents than Iowa
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Carl Wycoff // Wikimedia Commons

#10. Story County

- Population that is fully vaccinated: 63.3% (61,506 fully vaccinated)
--- 2.1% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 93 (90 total deaths)
--- 69.3% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 20,573 (19,980 total cases)
--- 15.6% less cases per 100k residents than Iowa
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Ann Sullivan-Larson // Wikimedia Commons

#9. Hamilton County

- Population that is fully vaccinated: 63.8% (9,420 fully vaccinated)
--- 2.9% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 487 (72 total deaths)
--- 60.7% more deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,563 (3,481 total cases)
--- 3.3% less cases per 100k residents than Iowa
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Library of Congress // Wikimedia Commons

#8. Boone County

- Population that is fully vaccinated: 64.6% (16,955 fully vaccinated)
--- 4.2% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 206 (54 total deaths)
--- 32.0% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 21,038 (5,519 total cases)
--- 13.7% less cases per 100k residents than Iowa
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FluffyGryphon // Wikimedia Commons

#7. Dubuque County

- Population that is fully vaccinated: 64.6% (62,900 fully vaccinated)
--- 4.2% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 303 (295 total deaths)
--- 0.0% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 27,052 (26,325 total cases)
--- 11.0% more cases per 100k residents than Iowa
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Daniel Hartwig // Wikimedia Commons

#6. Marshall County

- Population that is fully vaccinated: 66.3% (26,095 fully vaccinated)
--- 6.9% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 284 (112 total deaths)
--- 6.3% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,100 (9,488 total cases)
--- 1.1% less cases per 100k residents than Iowa
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Jim Roberts // Wikimedia Commons

#5. Linn County

- Population that is fully vaccinated: 66.9% (151,641 fully vaccinated)
--- 7.9% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 257 (583 total deaths)
--- 15.2% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,433 (53,125 total cases)
--- 3.8% less cases per 100k residents than Iowa
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Stephen Matthew Milligan // Wikimedia Commons

#4. Dallas County

- Population that is fully vaccinated: 67.1% (62,691 fully vaccinated)
--- 8.2% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 154 (144 total deaths)
--- 49.2% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 24,972 (23,337 total cases)
--- 2.5% more cases per 100k residents than Iowa
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Katie Haugland Bowen // Flickr

#3. Polk County

- Population that is fully vaccinated: 67.8% (332,535 fully vaccinated)
--- 9.4% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 225 (1,105 total deaths)
--- 25.7% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 25,789 (126,409 total cases)
--- 5.8% 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: 68.3% (13,399 fully vaccinated)
--- 10.2% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 296 (58 total deaths)
--- 2.3% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 32,640 (6,404 total cases)
--- 33.9% more cases per 100k residents than Iowa
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Billwhittaker // Wikimedia Commons

#1. Johnson County

- Population that is fully vaccinated: 72.8% (110,070 fully vaccinated)
--- 17.4% higher vaccination rate than Iowa
- Cumulative deaths per 100k: 101 (153 total deaths)
--- 66.7% less deaths per 100k residents than Iowa
- Cumulative cases per 100k: 23,515 (35,541 total cases)
--- 3.5% less cases per 100k residents than Iowa

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