Iowa Voting-age Male and Female Gender Population By County in 2021 (ACS-5Yrs)
Updated on July 4, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, the Iowa voting-age population consisted of 1.21M males and 1.23M females.
Voting-age Male Population: Polk had the highest voting-age male population (180.26K), followed by Linn (85.94K), and Scott (64.90K).
Voting-age Female Population: Polk had the highest voting-age female population (186.79K), followed by Linn (89.33K), and Scott (67.72K).
The charts and table below shows the voting-age male and female population for each county.
You can see similar information for other states and by state for the United States.
Related Topics: Iowa ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates, 2021 Census.
Iowa Voting-age Male Population By County in 2021
Iowa Voting-age Female Population By County in 2021
Iowa Voting-age Male and Female Population By County in 2021
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| County | Voting-age Male Population | Voting-age Female Population |
|---|---|---|
| Adair | 2902 | 2874 |
| Adams | 1445 | 1458 |
| Allamakee | 5458 | 5259 |
| Appanoose | 4684 | 4810 |
| Audubon | 2136 | 2262 |
| Benton | 9867 | 9771 |
| Black Hawk | 50199 | 52354 |
| Boone | 10570 | 10371 |
| Bremer | 9495 | 9667 |
| Buchanan | 7502 | 7666 |
| Buena Vista | 7854 | 7439 |
| Butler | 5444 | 5654 |
| Calhoun | 4029 | 3697 |
| Carroll | 7743 | 8032 |
| Cass | 5070 | 5090 |
| Cedar | 7096 | 7306 |
| Cerro Gordo | 16642 | 17457 |
| Cherokee | 4567 | 4410 |
| Chickasaw | 4657 | 4492 |
| Clarke | 3677 | 3513 |
| Clay | 6175 | 6388 |
| Clayton | 6787 | 6655 |
| Clinton | 17662 | 18282 |
| Crawford | 6085 | 6260 |
| Dallas | 34478 | 35581 |
| Davis | 3225 | 3150 |
| Decatur | 3036 | 2998 |
| Delaware | 6704 | 6594 |
| Des Moines | 14590 | 15571 |
| Dickinson | 6960 | 7153 |
| Dubuque | 37508 | 38561 |
| Emmet | 3767 | 3731 |
| Fayette | 7682 | 7717 |
| Floyd | 5938 | 6143 |
| Franklin | 3822 | 3875 |
| Fremont | 2592 | 2582 |
| Greene | 3337 | 3497 |
| Grundy | 4695 | 4738 |
| Guthrie | 4115 | 4128 |
| Hamilton | 5790 | 5819 |
| Hancock | 4226 | 4244 |
| Hardin | 6789 | 6830 |
| Harrison | 5606 | 5560 |
| Henry | 8351 | 7704 |
| Howard | 3494 | 3544 |
| Humboldt | 3649 | 3665 |
| Ida | 2605 | 2641 |
| Iowa | 6391 | 6354 |
| Jackson | 7646 | 7529 |
| Jasper | 15152 | 14092 |
| Jefferson | 6650 | 5990 |
| Johnson | 60086 | 61373 |
| Jones | 8474 | 7708 |
| Keokuk | 3900 | 3828 |
| Kossuth | 5775 | 5751 |
| Lee | 13281 | 13142 |
| Linn | 85942 | 89330 |
| Louisa | 4309 | 4116 |
| Lucas | 3399 | 3287 |
| Lyon | 4314 | 4247 |
| Madison | 6044 | 6191 |
| Mahaska | 8449 | 8367 |
| Marion | 12801 | 12751 |
| Marshall | 15020 | 14860 |
| Mills | 5619 | 5582 |
| Mitchell | 3976 | 4013 |
| Monona | 3245 | 3537 |
| Monroe | 2829 | 2907 |
| Montgomery | 3802 | 4010 |
| Muscatine | 16190 | 16218 |
| O'Brien | 5376 | 5358 |
| Osceola | 2391 | 2315 |
| Page | 6463 | 5746 |
| Palo Alto | 3443 | 3422 |
| Plymouth | 9485 | 9617 |
| Pocahontas | 2723 | 2764 |
| Polk | 180258 | 186786 |
| Pottawattamie | 34882 | 36505 |
| Poweshiek | 7211 | 7684 |
| Ringgold | 1721 | 1869 |
| Sac | 3783 | 3853 |
| Scott | 64898 | 67720 |
| Shelby | 4376 | 4788 |
| Sioux | 12972 | 12916 |
| Story | 43042 | 38748 |
| Tama | 6427 | 6498 |
| Taylor | 2257 | 2287 |
| Union | 4622 | 4810 |
| Van Buren | 2789 | 2736 |
| Wapello | 13528 | 13594 |
| Warren | 19100 | 19904 |
| Washington | 8292 | 8617 |
| Wayne | 2389 | 2431 |
| Webster | 15307 | 13840 |
| Winnebago | 4209 | 4152 |
| Winneshiek | 8103 | 8257 |
| Woodbury | 38444 | 39167 |
| Worth | 3043 | 2865 |
| Wright | 4911 | 4846 |