The graph below ranks each Iowa County by Average income according to the 2012 census estimates.
Iowa Average Income by county
| County | Average Income |
| Dallas |  $35,116 |
| Dickinson | $31,529 |
| Polk | $29,973 |
| Linn | $29,739 |
| Kossuth | $29,333 |
| Johnson | $29,294 |
| Warren | $29,282 |
| Iowa | $29,053 |
| Grundy | $29,044 |
| Plymouth | $29,020 |
| Worth | $28,854 |
| Scott | $28,764 |
| Bremer | $28,276 |
| Madison | $27,745 |
| Mills | $27,382 |
| Boone | $26,899 |
| Clay | $26,872 |
| Audubon | $26,855 |
| Cerro Gordo | $26,764 |
| Benton | $26,744 |
| Emmet | $26,740 |
| Humboldt | $26,616 |
| Cedar | $26,604 |
| Greene | $26,461 |
| O'Brien | $26,338 |
| Buchanan | $26,058 |
| Dubuque | $26,034 |
| Guthrie | $25,941 |
| Story | $25,856 |
| Sac | $25,811 |
| Cherokee | $25,801 |
| Adams | $25,709 |
| Poweshiek | $25,606 |
| Calhoun | $25,469 |
| Washington | $25,438 |
| Fremont | $25,422 |
| Ida | $25,363 |
| Harrison | $25,348 |
| Carroll | $25,301 |
| Pottawattamie | $25,239 |
| Adair | $25,147 |
| Franklin | $25,102 |
| Jefferson | $25,048 |
| Shelby | $25,031 |
| Clinton | $24,998 |
| Delaware | $24,989 |
| Marion | $24,898 |
| Wright | $24,828 |
| Hancock | $24,729 |
| Jones | $24,726 |
| Winneshiek | $24,564 |
| Hamilton | $24,517 |
| Muscatine | $24,386 |
| Chickasaw | $24,378 |
| Clayton | $24,378 |
| Butler | $24,361 |
| Osceola | $24,306 |
| Mitchell | $24,292 |
| Hardin | $24,261 |
| Jackson | $24,253 |
| Des Moines | $24,225 |
| Tama | $24,127 |
| Webster | $24,107 |
| Jasper | $24,096 |
| Pocahontas | $24,073 |
| Winnebago | $24,057 |
| Cass | $24,001 |
| Black Hawk | $23,910 |
| Monona | $23,844 |
| Sioux | $23,632 |
| Henry | $23,577 |
| Howard | $23,541 |
| Palo Alto | $23,514 |
| Floyd | $23,480 |
| Clarke | $23,397 |
| Allamakee | $23,392 |
| Monroe | $23,291 |
| Louisa | $23,149 |
| Marshall | $23,121 |
| Buena Vista | $22,965 |
| Mahaska | $22,931 |
| Woodbury | $22,921 |
| Page | $22,895 |
| Taylor | $22,872 |
| Wapello | $22,825 |
| Montgomery | $22,811 |
| Lyon | $22,714 |
| Ringgold | $22,382 |
| Fayette | $22,335 |
| Davis | $22,227 |
| Lee | $22,117 |
| Keokuk | $21,978 |
| Crawford | $21,892 |
| Union | $21,792 |
| Lucas | $21,240 |
| Wayne | $20,966 |
| Van Buren | $20,704 |
| Appanoose | $20,463 |
| Decatur | $18,926 |