The graph below ranks each Iowa County by Median Household income according to the 2012 census estimates.
Iowa Median Household Income by county
| County | Median Household Income |
| Dallas |  $71,878 |
| Mills | $62,908 |
| Warren | $62,778 |
| Bremer | $60,193 |
| Plymouth | $58,916 |
| Cedar | $58,433 |
| Polk | $58,096 |
| Benton | $57,488 |
| Iowa | $57,318 |
| Linn | $56,790 |
| Madison | $56,765 |
| Grundy | $56,264 |
| Sioux | $55,252 |
| Buchanan | $54,596 |
| Johnson | $53,993 |
| Harrison | $53,939 |
| Marion | $53,684 |
| Jones | $53,562 |
| Dickinson | $53,426 |
| Scott | $53,002 |
| Winneshiek | $52,827 |
| Washington | $52,636 |
| Muscatine | $51,675 |
| Delaware | $51,663 |
| Butler | $51,348 |
| Boone | $51,284 |
| Dubuque | $50,885 |
| Poweshiek | $50,703 |
| Worth | $50,603 |
| Mitchell | $50,574 |
| Pottawattamie | $49,941 |
| Louisa | $49,905 |
| Lyon | $49,727 |
| Story | $49,683 |
| Kossuth | $49,431 |
| Marshall | $49,259 |
| Fremont | $49,245 |
| Tama | $49,244 |
| Franklin | $49,144 |
| Guthrie | $49,114 |
| Clinton | $49,010 |
| Carroll | $48,824 |
| Jasper | $48,746 |
| Humboldt | $48,710 |
| Hancock | $48,695 |
| Jefferson | $48,411 |
| Hardin | $47,902 |
| Adair | $47,872 |
| Cherokee | $47,816 |
| Mahaska | $47,758 |
| Shelby | $47,731 |
| Audubon | $47,630 |
| Allamakee | $47,539 |
| Buena Vista | $46,947 |
| Clay | $46,880 |
| Davis | $46,807 |
| Clayton | $46,617 |
| Sac | $46,606 |
| Crawford | $46,601 |
| Emmet | $46,547 |
| Winnebago | $46,438 |
| Osceola | $45,951 |
| Greene | $45,816 |
| Wright | $45,713 |
| Hamilton | $45,691 |
| Black Hawk | $45,610 |
| Howard | $45,300 |
| Woodbury | $45,289 |
| Monroe | $45,266 |
| O'Brien | $45,194 |
| Adams | $45,099 |
| Calhoun | $45,097 |
| Jackson | $44,854 |
| Cerro Gordo | $44,762 |
| Clarke | $44,211 |
| Lucas | $44,020 |
| Henry | $43,843 |
| Chickasaw | $43,741 |
| Ida | $43,690 |
| Ringgold | $43,655 |
| Des Moines | $43,427 |
| Cass | $43,114 |
| Fayette | $42,995 |
| Monona | $42,832 |
| Keokuk | $42,688 |
| Taylor | $42,638 |
| Floyd | $42,386 |
| Pocahontas | $42,138 |
| Lee | $41,954 |
| Page | $41,803 |
| Union | $41,795 |
| Webster | $41,751 |
| Van Buren | $41,572 |
| Wapello | $41,088 |
| Montgomery | $40,530 |
| Palo Alto | $40,500 |
| Wayne | $38,447 |
| Appanoose | $37,866 |
| Decatur | $34,942 |