Counties with highest COVID-19 infection rates in Iowa
Counties with highest COVID-19 infection rates 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.
Researchers around the world have reported that Omicron is more transmissible than Delta, making breakthrough and repeat infections more likely.
The United States as of Nov. 16 reached over 1 million COVID-19-related deaths and 98.1 million COVID-19 cases, according to Johns Hopkins University. Currently, 68.6% of the population is fully vaccinated, and 10.1% of vaccinated people have received the most recently available bivalent booster doses.
Stacker compiled a list of the counties with highest COVID-19 infection rates in Iowa using data from the U.S. Department of Health & Human Services and vaccination data from Covid Act Now. Counties are ranked by the highest infection rate per 100,000 residents within the week leading up to Nov. 10, 2022. Cumulative cases per 100,000 served as a tiebreaker.
Keep reading to see whether your county ranks among the highest COVID-19 infection rates in your state.
#50. Fremont County, IA
- Cumulative cases per 100k: 22,543 (1,569 total cases)
--- 17.9% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 402 (28 total deaths)
--- 24.1% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 54.7% (3,808 fully vaccinated)
#49. Harrison County, IA
- Cumulative cases per 100k: 26,443 (3,715 total cases)
--- 3.7% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 698 (98 total deaths)
--- 115.4% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 53.5% (7,523 fully vaccinated)
#48. Winnebago County, IA
- Cumulative cases per 100k: 32,306 (3,345 total cases)
--- 17.6% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 454 (47 total deaths)
--- 40.1% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 53.7% (5,558 fully vaccinated)
#47. Keokuk County, IA
- Cumulative cases per 100k: 22,838 (2,340 total cases)
--- 16.9% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 517 (53 total deaths)
--- 59.6% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 47.6% (4,876 fully vaccinated)
#46. Muscatine County, IA
- Cumulative cases per 100k: 25,541 (10,897 total cases)
--- 7.0% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 323 (138 total deaths)
--- 0.3% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 62.4% (26,629 fully vaccinated)
#45. Tama County, IA
- Cumulative cases per 100k: 26,267 (4,427 total cases)
--- 4.4% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 576 (97 total deaths)
--- 77.8% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 64.2% (10,812 fully vaccinated)
#44. Des Moines County, IA
- Cumulative cases per 100k: 27,426 (10,687 total cases)
--- 0.1% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 398 (155 total deaths)
--- 22.8% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 52.9% (20,624 fully vaccinated)
#43. Washington County, IA
- Cumulative cases per 100k: 29,483 (6,476 total cases)
--- 7.3% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 378 (83 total deaths)
--- 16.7% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 58.3% (12,811 fully vaccinated)
#42. Lyon County, IA
- Cumulative cases per 100k: 25,632 (3,013 total cases)
--- 6.7% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 442 (52 total deaths)
--- 36.4% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 43.5% (5,108 fully vaccinated)
#41. Pocahontas County, IA
- Cumulative cases per 100k: 27,980 (1,852 total cases)
--- 1.9% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 423 (28 total deaths)
--- 30.6% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 53.5% (3,541 fully vaccinated)
#40. Madison County, IA
- Cumulative cases per 100k: 21,661 (3,539 total cases)
--- 21.1% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 269 (44 total deaths)
--- 17.0% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 55.2% (9,012 fully vaccinated)
#39. Buchanan County, IA
- Cumulative cases per 100k: 25,006 (5,295 total cases)
--- 9.0% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 307 (65 total deaths)
--- 5.2% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 54.9% (11,634 fully vaccinated)
#38. Wayne County, IA
- Cumulative cases per 100k: 22,652 (1,459 total cases)
--- 17.5% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 512 (33 total deaths)
--- 58.0% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 43.0% (2,769 fully vaccinated)
#37. Cherokee County, IA
- Cumulative cases per 100k: 30,467 (3,423 total cases)
--- 10.9% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 623 (70 total deaths)
--- 92.3% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 54.3% (6,105 fully vaccinated)
#36. Woodbury County, IA
- Cumulative cases per 100k: 30,954 (31,916 total cases)
--- 12.7% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 339 (350 total deaths)
--- 4.6% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 58.6% (60,404 fully vaccinated)
#35. Clayton County, IA
- Cumulative cases per 100k: 22,275 (3,909 total cases)
--- 18.9% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 444 (78 total deaths)
--- 37.0% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 49.2% (8,634 fully vaccinated)
#34. Floyd County, IA
- Cumulative cases per 100k: 25,898 (4,051 total cases)
--- 5.7% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 422 (66 total deaths)
--- 30.2% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 54.3% (8,490 fully vaccinated)
#33. Carroll County, IA
- Cumulative cases per 100k: 27,270 (5,499 total cases)
--- 0.7% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 382 (77 total deaths)
--- 17.9% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 62.9% (12,685 fully vaccinated)
#32. Taylor County, IA
- Cumulative cases per 100k: 23,983 (1,468 total cases)
--- 12.7% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 376 (23 total deaths)
--- 16.0% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 48.0% (2,940 fully vaccinated)
#31. Guthrie County, IA
- Cumulative cases per 100k: 24,951 (2,667 total cases)
--- 9.2% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 440 (47 total deaths)
--- 35.8% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 59.8% (6,390 fully vaccinated)
#30. Page County, IA
- Cumulative cases per 100k: 24,326 (3,675 total cases)
--- 11.4% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 338 (51 total deaths)
--- 4.3% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 54.7% (8,257 fully vaccinated)
#29. Black Hawk County, IA
- Cumulative cases per 100k: 28,423 (37,299 total cases)
--- 3.5% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 388 (509 total deaths)
--- 19.8% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 62.1% (81,524 fully vaccinated)
#28. Clinton County, IA
- Cumulative cases per 100k: 28,751 (13,349 total cases)
--- 4.7% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 353 (164 total deaths)
--- 9.0% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 56.1% (26,051 fully vaccinated)
#27. Pottawattamie County, IA
- Cumulative cases per 100k: 28,913 (26,949 total cases)
--- 5.3% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 365 (340 total deaths)
--- 12.7% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 60.0% (55,890 fully vaccinated)
#26. Van Buren County, IA
- Cumulative cases per 100k: 22,629 (1,594 total cases)
--- 17.6% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 383 (27 total deaths)
--- 18.2% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 42.9% (3,019 fully vaccinated)
#25. Montgomery County, IA
- Cumulative cases per 100k: 24,927 (2,472 total cases)
--- 9.2% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 575 (57 total deaths)
--- 77.5% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 58.6% (5,811 fully vaccinated)
#24. Union County, IA
- Cumulative cases per 100k: 25,219 (3,087 total cases)
--- 8.2% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 441 (54 total deaths)
--- 36.1% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 52.5% (6,432 fully vaccinated)
#23. Marshall County, IA
- Cumulative cases per 100k: 27,522 (10,835 total cases)
--- 0.2% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 318 (125 total deaths)
--- 1.9% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 68.0% (26,769 fully vaccinated)
#22. Marion County, IA
- Cumulative cases per 100k: 25,562 (8,500 total cases)
--- 6.9% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 391 (130 total deaths)
--- 20.7% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 54.3% (18,043 fully vaccinated)
#21. Cass County, IA
- Cumulative cases per 100k: 24,610 (3,159 total cases)
--- 10.4% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 639 (82 total deaths)
--- 97.2% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 59.5% (7,634 fully vaccinated)
#20. Cerro Gordo County, IA
- Cumulative cases per 100k: 29,145 (12,372 total cases)
--- 6.1% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 412 (175 total deaths)
--- 27.2% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 65.0% (27,572 fully vaccinated)
#19. Grundy County, IA
- Cumulative cases per 100k: 23,488 (2,873 total cases)
--- 14.5% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 392 (48 total deaths)
--- 21.0% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 63.5% (7,766 fully vaccinated)
#18. Delaware County, IA
- Cumulative cases per 100k: 26,783 (4,556 total cases)
--- 2.5% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 406 (69 total deaths)
--- 25.3% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 55.9% (9,516 fully vaccinated)
#17. Linn County, IA
- Cumulative cases per 100k: 27,166 (61,588 total cases)
--- 1.1% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 277 (629 total deaths)
--- 14.5% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 68.5% (155,352 fully vaccinated)
#16. Adams County, IA
- Cumulative cases per 100k: 25,208 (908 total cases)
--- 8.2% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 389 (14 total deaths)
--- 20.1% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 57.3% (2,063 fully vaccinated)
#15. Clay County, IA
- Cumulative cases per 100k: 28,915 (4,631 total cases)
--- 5.3% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 318 (51 total deaths)
--- 1.9% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 53.3% (8,541 fully vaccinated)
#14. Ida County, IA
- Cumulative cases per 100k: 29,227 (2,005 total cases)
--- 6.4% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 714 (49 total deaths)
--- 120.4% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 49.9% (3,425 fully vaccinated)
#13. Butler County, IA
- Cumulative cases per 100k: 25,300 (3,653 total cases)
--- 7.9% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 388 (56 total deaths)
--- 19.8% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 58.5% (8,452 fully vaccinated)
#12. Audubon County, IA
- Cumulative cases per 100k: 22,853 (1,256 total cases)
--- 16.8% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 418 (23 total deaths)
--- 29.0% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 59.6% (3,275 fully vaccinated)
#11. Louisa County, IA
- Cumulative cases per 100k: 25,609 (2,826 total cases)
--- 6.8% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 589 (65 total deaths)
--- 81.8% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 54.4% (6,005 fully vaccinated)
#10. Johnson County, IA
- Cumulative cases per 100k: 28,419 (42,953 total cases)
--- 3.5% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 112 (169 total deaths)
--- 65.4% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 75.9% (114,678 fully vaccinated)
#9. Cedar County, IA
- Cumulative cases per 100k: 25,796 (4,805 total cases)
--- 6.1% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 231 (43 total deaths)
--- 28.7% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 61.6% (11,476 fully vaccinated)
#8. Dubuque County, IA
- Cumulative cases per 100k: 30,421 (29,603 total cases)
--- 10.8% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 325 (316 total deaths)
--- 0.3% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 66.2% (64,387 fully vaccinated)
#7. Greene County, IA
- Cumulative cases per 100k: 21,996 (1,955 total cases)
--- 19.9% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 293 (26 total deaths)
--- 9.6% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 59.6% (5,301 fully vaccinated)
#6. Mitchell County, IA
- Cumulative cases per 100k: 25,779 (2,729 total cases)
--- 6.1% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 463 (49 total deaths)
--- 42.9% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 49.8% (5,273 fully vaccinated)
#5. Chickasaw County, IA
- Cumulative cases per 100k: 25,526 (3,046 total cases)
--- 7.1% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 285 (34 total deaths)
--- 12.0% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 56.2% (6,703 fully vaccinated)
#4. Appanoose County, IA
- Cumulative cases per 100k: 26,437 (3,285 total cases)
--- 3.7% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 579 (72 total deaths)
--- 78.7% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 48.6% (6,035 fully vaccinated)
#3. Benton County, IA
- Cumulative cases per 100k: 26,836 (6,882 total cases)
--- 2.3% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 312 (80 total deaths)
--- 3.7% less deaths per 100k residents than Iowa
- Population that is fully vaccinated: 60.5% (15,505 fully vaccinated)
#2. Lucas County, IA
- Cumulative cases per 100k: 24,128 (2,075 total cases)
--- 12.2% less cases per 100k residents than Iowa
- Cumulative deaths per 100k: 384 (33 total deaths)
--- 18.5% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 46.4% (3,993 fully vaccinated)
#1. Hancock County, IA
- Cumulative cases per 100k: 29,690 (3,156 total cases)
--- 8.1% more cases per 100k residents than Iowa
- Cumulative deaths per 100k: 461 (49 total deaths)
--- 42.3% more deaths per 100k residents than Iowa
- Population that is fully vaccinated: 51.0% (5,416 fully vaccinated)