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.
#50. Madison County
--- 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
#49. Fayette County
--- 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
#48. Franklin County
--- 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
#47. Delaware County
--- 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
#46. Clinton County
--- 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
#45. Clarke County
--- 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
#44. Chickasaw County
--- 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
#43. Hardin County
--- 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
#42. Adams County
--- 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
#41. Mills County
--- 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
#40. Woodbury County
--- 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
#39. Montgomery County
--- 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
#38. Washington County
--- 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
#37. Butler County
--- 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
#36. Wright County
--- 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
#35. Webster County
--- 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
#34. Pottawattamie County
--- 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
#33. Cass County
--- 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
#32. Audubon County
--- 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
#31. Guthrie County
--- 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
#30. Dickinson County
--- 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
#29. Greene County
--- 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
#28. Benton County
--- 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
#27. Poweshiek County
--- 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
#26. Jones County
--- 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
#25. Jasper County
--- 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
#24. Shelby County
--- 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
#23. Calhoun County
--- 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
#22. Bremer County
--- 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
#21. Warren County
--- 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
#20. Cedar County
--- 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
#19. Black Hawk County
--- 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
#18. Muscatine County
--- 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
#17. Scott County
--- 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
#16. Carroll County
--- 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
#15. Grundy County
--- 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
#14. Winneshiek County
--- 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
#13. Tama County
--- 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
#12. Iowa County
--- 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
#11. Cerro Gordo County
--- 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
#10. Story County
--- 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
#9. Hamilton County
--- 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
#8. Boone County
--- 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
#7. Dubuque County
--- 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
#6. Marshall County
--- 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
#5. Linn County
--- 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
#4. Dallas County
--- 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

#3. Polk County
--- 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
#2. Buena Vista County
--- 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
#1. Johnson County
--- 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