Each of Iowa's 99 counties has a county assessor who values homes. Seven cities have their own city assessor instead: Ames, Cedar Rapids, Davenport, Dubuque, Iowa City, Mason City and Sioux City. If you live in one of those cities, your city assessor values your home and you protest to the city's board of review. Everywhere else, the county assessor values your home and you protest to the county board of review. Find your county for contact details, local tax figures and a step-by-step guide.
| County | Office phone | Tax rate | Median tax |
|---|---|---|---|
| Adair | 641-743-2530 | 1.15% | $2,050 |
| Adams | 641-322-4312 | 0.95% | $1,661 |
| Allamakee | 563-568-3145 | 0.94% | $2,190 |
| Appanoose | 641-437-4529 | 1.15% | $1,667 |
| Audubon | 712-563-3418 | 0.86% | $1,634 |
| Benton | 319-472-5211 | 1.23% | $2,727 |
| Black Hawk | 319-833-3006 | 1.33% | $2,842 |
| Boone | 515-433-0508 | 1.29% | $2,910 |
| Bremer | 319-352-0145 | 1.23% | $2,824 |
| Buchanan | 319-334-2706 | 1.22% | $2,390 |
| Buena Vista | 712-749-2543 | 1.36% | $1,931 |
| Butler | 319-346-6545 | 1.25% | $2,226 |
| Calhoun | 712-297-7500 | 1.11% | $1,567 |
| Carroll | 712-792-9973 | 1.22% | $1,916 |
| Cass | 712-243-2005 | 1.40% | $2,019 |
| Cedar | 563-886-6413 | 1.08% | $2,568 |
| Cerro Gordo | 641-421-3065 | 1.27% | $2,410 |
| Cherokee | 712-225-6701 | 0.96% | $1,569 |
| Chickasaw | 641-394-2813 | 1.00% | $1,863 |
| Clarke | 641-342-3817 | 1.23% | $2,578 |
| Clay | 712-262-1986 | 0.93% | $2,050 |
| Clayton | 563-245-2533 | 0.98% | $2,181 |
| Clinton | 563-244-0571 | 1.34% | $2,461 |
| Crawford | 712-263-3447 | 1.28% | $1,973 |
| Dallas | 515-993-5802 | 1.37% | $5,001 |
| Davis | 641-664-3101 | 1.51% | $2,269 |
| Decatur | 641-446-4314 | 1.33% | $1,831 |
| Delaware | 563-927-2526 | 1.16% | $2,382 |
| Des Moines | 319-753-8224 | 1.36% | $2,058 |
| Dickinson | 712-336-2687 | 0.78% | $2,503 |
| Dubuque | 563-589-4432 | 1.15% | $2,919 |
| Emmet | 712-362-2609 | 1.18% | $1,680 |
| Fayette | 563-422-3397 | 1.29% | $1,782 |
| Floyd | 641-257-6152 | 1.15% | $1,929 |
| Franklin | 641-456-5118 | 1.20% | $1,633 |
| Fremont | 712-374-2631 | 1.01% | $1,868 |
| Greene | 515-386-5660 | 1.23% | $1,783 |
| Grundy | 319-824-6216 | 1.18% | $2,273 |
| Guthrie | 641-747-3319 | 1.16% | $2,199 |
| Hamilton | 515-832-9505 | 1.17% | $1,977 |
| Hancock | 641-923-2269 | 1.18% | $1,673 |
| Hardin | 641-939-8100 | 1.25% | $1,683 |
| Harrison | 712-644-3101 | 1.19% | $2,325 |
| Henry | 319-385-0750 | 1.43% | $2,559 |
| Howard | 563-547-9201 | 1.17% | $1,853 |
| Humboldt | 515-332-1463 | 1.34% | $2,011 |
| Ida | 712-364-3622 | 0.95% | $1,260 |
| Iowa | 319-642-3923 | 1.19% | $2,629 |
| Jackson | 563-652-4935 | 0.94% | $2,159 |
| Jasper | 641-792-6195 | 1.24% | $2,633 |
| Jefferson | 641-472-2849 | 1.35% | $2,311 |
| Johnson | 319-356-6078 | 1.40% | $4,681 |
| Jones | 319-462-2671 | 1.16% | $2,450 |
| Keokuk | 641-622-2760 | 1.13% | $1,494 |
| Kossuth | 515-295-3857 | 1.06% | $1,490 |
| Lee | 319-372-6302 | 1.28% | $1,955 |
| Linn | 319-892-5220 | 1.47% | $3,547 |
| Louisa | 319-523-6111 | 1.08% | $1,751 |
| Lucas | 641-774-4411 | 1.00% | $1,645 |
| Lyon | 712-472-8550 | 0.86% | $1,995 |
| Madison | 515-462-4303 | 1.25% | $3,624 |
| Mahaska | 641-673-5805 | 1.26% | $2,077 |
| Marion | 641-828-2215 | 1.17% | $2,848 |
| Marshall | 641-754-6305 | 1.29% | $2,067 |
| Mills | 712-527-4883 | 1.13% | $3,494 |
| Mitchell | 641-832-3945 | 0.99% | $1,919 |
| Monona | 712-433-2271 | 1.06% | $1,467 |
| Monroe | 641-932-2180 | 1.39% | $2,149 |
| Montgomery | 712-623-4171 | 1.33% | $2,007 |
| Muscatine | 563-263-7061 | 1.32% | $2,732 |
| O'Brien | 712-957-3205 | 1.03% | $1,701 |
| Osceola | 712-754-3438 | 0.95% | $1,387 |
| Page | 712-542-2516 | 1.20% | $1,764 |
| Palo Alto | 712-852-3823 | 1.06% | $1,474 |
| Plymouth | 712-546-4705 | 0.99% | $2,455 |
| Pocahontas | 712-335-5016 | 1.06% | $1,111 |
| Polk | 515-286-3014 | 1.57% | $4,396 |
| Pottawattamie | 712-328-5617 | 1.32% | $3,067 |
| Poweshiek | 641-623-5445 | 1.11% | $2,563 |
| Ringgold | 641-464-3233 | 1.15% | $2,098 |
| Sac | 712-662-4492 | 0.93% | $1,556 |
| Scott | 563-326-8635 | 1.44% | $3,273 |
| Shelby | 712-755-5718 | 1.19% | $2,094 |
| Sioux | 712-737-4274 | 1.08% | $2,801 |
| Story | 515-239-5378 | 1.36% | $3,632 |
| Tama | 641-484-3545 | 1.20% | $2,043 |
| Taylor | 712-523-2444 | 1.14% | $1,482 |
| Union | 641-782-1735 | 1.48% | $2,197 |
| Van Buren | 319-293-3001 | 0.78% | $1,355 |
| Wapello | 641-683-0088 | 1.37% | $1,974 |
| Warren | 515-690-9170 | 1.39% | $3,865 |
| Washington | 319-653-7738 | 1.20% | $2,788 |
| Wayne | 641-872-2663 | 1.14% | $1,509 |
| Webster | 515-576-4721 | 1.39% | $2,138 |
| Winnebago | 641-585-2163 | 1.35% | $1,781 |
| Winneshiek | 563-382-5356 | 0.99% | $2,894 |
| Woodbury | 712-279-6505 | 1.39% | $2,656 |
| Worth | 641-324-1198 | 0.91% | $1,600 |
| Wright | 515-532-3737 | 1.28% | $1,806 |