Effective property tax rates for all 99 Iowa counties — median real estate taxes paid ÷ median home value, from U.S. Census ACS data — ranked highest to lowest. Montgomery County has the highest rate at 1.79%; Lyon County has the lowest at 0.92%.
Data as of July 2026.
| Rank | County | Effective rate | Median annual bill | Median home value |
|---|---|---|---|---|
| 1 | Montgomery County | 1.79% | $1,968 | $109,900 |
| 2 | Union County | 1.79% | $2,108 | $117,800 |
| 3 | Polk County | 1.76% | $4,364 | $248,400 |
| 4 | Decatur County | 1.69% | $1,856 | $109,500 |
| 5 | Linn County | 1.66% | $3,396 | $204,400 |
| 6 | Wapello County | 1.64% | $1,854 | $112,900 |
| 7 | Pottawattamie County | 1.61% | $2,961 | $183,600 |
| 8 | Henry County | 1.61% | $2,394 | $148,600 |
| 9 | Johnson County | 1.56% | $4,587 | $293,100 |
| 10 | Madison County | 1.55% | $3,681 | $236,900 |
| 11 | Clinton County | 1.55% | $2,382 | $153,800 |
| 12 | Muscatine County | 1.55% | $2,667 | $172,400 |
| 13 | Wright County | 1.54% | $1,695 | $109,800 |
| 14 | Des Moines County | 1.53% | $2,097 | $137,000 |
| 15 | Black Hawk County | 1.53% | $2,790 | $182,400 |
| 16 | Monroe County | 1.52% | $2,065 | $135,900 |
| 17 | Davis County | 1.52% | $2,217 | $146,000 |
| 18 | Scott County | 1.52% | $3,221 | $212,500 |
| 19 | Marshall County | 1.51% | $2,030 | $134,100 |
| 20 | Warren County | 1.50% | $3,797 | $252,800 |
| 21 | Lee County | 1.50% | $1,855 | $123,600 |
| 22 | Cerro Gordo County | 1.50% | $2,305 | $154,100 |
| 23 | Jefferson County | 1.49% | $2,397 | $161,200 |
| 24 | Lucas County | 1.48% | $1,732 | $117,000 |
| 25 | Emmet County | 1.48% | $1,570 | $106,200 |
| 26 | Webster County | 1.48% | $2,047 | $138,500 |
| 27 | Woodbury County | 1.48% | $2,542 | $172,000 |
| 28 | Story County | 1.47% | $3,586 | $243,600 |
| 29 | Mills County | 1.46% | $3,334 | $228,700 |
| 30 | Clarke County | 1.46% | $2,335 | $160,200 |
| 31 | Dallas County | 1.45% | $4,849 | $333,400 |
| 32 | Page County | 1.43% | $1,721 | $120,000 |
| 33 | Boone County | 1.43% | $2,741 | $191,200 |
| 34 | Cass County | 1.43% | $1,904 | $133,300 |
| 35 | Hardin County | 1.43% | $1,613 | $113,000 |
| 36 | Jasper County | 1.42% | $2,518 | $176,800 |
| 37 | Floyd County | 1.39% | $1,854 | $133,300 |
| 38 | Tama County | 1.39% | $1,945 | $139,900 |
| 39 | Mahaska County | 1.39% | $1,956 | $140,900 |
| 40 | Clayton County | 1.38% | $2,149 | $155,700 |
| 41 | Butler County | 1.38% | $2,158 | $156,500 |
| 42 | Hamilton County | 1.37% | $1,807 | $132,300 |
| 43 | Winnebago County | 1.36% | $1,800 | $132,300 |
| 44 | Bremer County | 1.35% | $2,796 | $207,200 |
| 45 | Iowa County | 1.35% | $2,560 | $189,800 |
| 46 | Franklin County | 1.35% | $1,597 | $118,500 |
| 47 | Washington County | 1.35% | $2,688 | $199,600 |
| 48 | Wayne County | 1.35% | $1,377 | $102,300 |
| 49 | Delaware County | 1.34% | $2,266 | $168,700 |
| 50 | Harrison County | 1.34% | $2,214 | $165,300 |
| 51 | Buchanan County | 1.33% | $2,286 | $171,400 |
| 52 | Keokuk County | 1.33% | $1,491 | $112,200 |
| 53 | Guthrie County | 1.33% | $2,172 | $163,900 |
| 54 | Benton County | 1.32% | $2,627 | $198,400 |
| 55 | Adair County | 1.32% | $1,858 | $140,600 |
| 56 | Crawford County | 1.32% | $1,799 | $136,300 |
| 57 | Calhoun County | 1.32% | $1,506 | $114,400 |
| 58 | Fayette County | 1.32% | $1,721 | $130,800 |
| 59 | Howard County | 1.30% | $1,744 | $133,900 |
| 60 | Fremont County | 1.30% | $1,918 | $147,500 |
| 61 | Jones County | 1.30% | $2,381 | $183,400 |
| 62 | Marion County | 1.29% | $2,727 | $211,100 |
| 63 | Humboldt County | 1.29% | $1,889 | $146,900 |
| 64 | Poweshiek County | 1.28% | $2,362 | $184,200 |
| 65 | Louisa County | 1.27% | $1,752 | $137,600 |
| 66 | Ringgold County | 1.27% | $1,909 | $150,300 |
| 67 | Adams County | 1.27% | $1,479 | $116,900 |
| 68 | Shelby County | 1.27% | $1,976 | $156,200 |
| 69 | Dubuque County | 1.26% | $2,848 | $226,100 |
| 70 | Appanoose County | 1.25% | $1,501 | $119,800 |
| 71 | Jackson County | 1.25% | $2,129 | $170,000 |
| 72 | Buena Vista County | 1.24% | $1,822 | $146,900 |
| 73 | Palo Alto County | 1.23% | $1,471 | $119,300 |
| 74 | Audubon County | 1.23% | $1,353 | $110,400 |
| 75 | Allamakee County | 1.22% | $2,103 | $171,900 |
| 76 | Cedar County | 1.22% | $2,433 | $199,700 |
| 77 | Taylor County | 1.21% | $1,329 | $109,700 |
| 78 | Van Buren County | 1.20% | $1,427 | $118,800 |
| 79 | Greene County | 1.20% | $1,682 | $140,500 |
| 80 | Hancock County | 1.19% | $1,541 | $129,300 |
| 81 | Clay County | 1.18% | $2,028 | $171,500 |
| 82 | Winneshiek County | 1.16% | $2,784 | $239,000 |
| 83 | Mitchell County | 1.16% | $1,897 | $164,100 |
| 84 | Sioux County | 1.16% | $2,722 | $235,600 |
| 85 | Monona County | 1.15% | $1,412 | $122,600 |
| 86 | Pocahontas County | 1.14% | $1,066 | $93,300 |
| 87 | Chickasaw County | 1.10% | $1,804 | $164,400 |
| 88 | Plymouth County | 1.08% | $2,363 | $218,600 |
| 89 | Cherokee County | 1.08% | $1,561 | $145,100 |
| 90 | Worth County | 1.08% | $1,530 | $142,300 |
| 91 | Grundy County | 1.07% | $1,929 | $180,500 |
| 92 | Ida County | 1.06% | $1,158 | $108,800 |
| 93 | Kossuth County | 1.06% | $1,437 | $135,100 |
| 94 | Carroll County | 1.05% | $1,849 | $175,700 |
| 95 | Osceola County | 1.05% | $1,302 | $123,800 |
| 96 | Sac County | 1.03% | $1,423 | $138,400 |
| 97 | O'Brien County | 0.99% | $1,572 | $158,900 |
| 98 | Dickinson County | 0.98% | $2,458 | $251,600 |
| 99 | Lyon County | 0.92% | $1,983 | $215,600 |
Rates are estimates derived from Census ACS 5-year data, not your actual bill — see the methodology for how they're calculated. A “≥” rate means the county sits at the ACS top-code ceiling, so the real rate may be higher.
Informational only — not legal or tax advice. Exemption rules and amounts are summarized from official statutes and state tax-agency sources as of each program's verified date and can change by legislative session. Dollar figures are estimates derived from Census ACS county tax data, not actual bills. Confirm your eligibility and current amounts with your county assessor before relying on anything here.