The median income of Riley County residents was $22,909 per year, adjusted for inflation. It had 26,648 households with a population of 75,296.
The county with the highest median resident income in the state was Johnson County with $41,425 per year after adjusting for inflation – $18,516 more than Riley County. It had 226,242 households with a population of 585,502.
The county with the lowest median resident income in the state was Elk County with $21,067 per year after adjusting for inflation – $1,842 less than Riley County. It had 1,117 households with a population of 2,562.
Top 100 counties by earnings per resident (2018)
| Rank | County | Earnings per resident |
|---|---|---|
| 1 | Johnson County | $41,425 |
| 2 | Scott County | $36,111 |
| 3 | Miami County | $34,021 |
| 4 | Jefferson County | $33,553 |
| 5 | Gray County | $32,912 |
| 6 | Pottawatomie County | $32,491 |
| 7 | Trego County | $32,148 |
| 8 | Wabaunsee County | $31,849 |
| 9 | Butler County | $31,706 |
| 10 | Leavenworth County | $31,568 |
| 11 | Grant County | $31,542 |
| 12 | Sheridan County | $31,376 |
| 13 | Shawnee County | $30,987 |
| 14 | Clark County | $30,690 |
| 15 | Edwards County | $30,688 |
| 16 | Franklin County | $30,542 |
| 17 | Comanche County | $30,511 |
| 18 | Stevens County | $30,208 |
| 19 | Jackson County | $30,069 |
| 20 | McPherson County | $30,043 |
| 21 | Geary County | $29,802 |
| 22 | Meade County | $29,800 |
| 23 | Sedgwick County | $29,748 |
| 24 | Stanton County | $29,738 |
| 25 | Ottawa County | $29,595 |
| 26 | Kingman County | $29,583 |
| 27 | Wallace County | $29,432 |
| 28 | Hodgeman County | $29,229 |
| 29 | Thomas County | $29,222 |
| 30 | Wichita County | $29,050 |
| 31 | Coffey County | $29,003 |
| 32 | Finney County | $28,874 |
| 33 | Sumner County | $28,838 |
| 34 | Marshall County | $28,834 |
| 35 | Harvey County | $28,587 |
| 36 | Osage County | $28,527 |
| 37 | Clay County | $28,409 |
| 38 | Ford County | $28,260 |
| 39 | Ness County | $28,214 |
| 40 | Saline County | $28,142 |
| 41 | Haskell County | $28,048 |
| 42 | Republic County | $27,949 |
| 43 | Pratt County | $27,922 |
| 44 | Greeley County | $27,886 |
| 45 | Morris County | $27,776 |
| 46 | Washington County | $27,500 |
| 47 | Nemaha County | $27,464 |
| 48 | Stafford County | $27,448 |
| 49 | Osborne County | $27,410 |
| 50 | Lane County | $27,368 |
| 51 | Kearny County | $27,336 |
| 52 | Rawlins County | $27,277 |
| 53 | Kiowa County | $27,215 |
| 54 | Morton County | $27,164 |
| 55 | Gove County | $27,111 |
| 56 | Decatur County | $27,000 |
| 57 | Harper County | $26,972 |
| 58 | Mitchell County | $26,951 |
| 59 | Hamilton County | $26,891 |
| 60 | Seward County | $26,833 |
| 61 | Lincoln County | $26,831 |
| 62 | Logan County | $26,803 |
| 63 | Phillips County | $26,546 |
| 64 | Barton County | $26,439 |
| 65 | Sherman County | $26,436 |
| 66 | Chase County | $26,419 |
| 67 | Barber County | $26,328 |
| 68 | Ellsworth County | $26,309 |
| 69 | Cheyenne County | $26,217 |
| 70 | Cloud County | $26,208 |
| 71 | Brown County | $26,072 |
| 71 | Linn County | $26,072 |
| 73 | Anderson County | $25,976 |
| 74 | Dickinson County | $25,906 |
| 75 | Neosho County | $25,817 |
| 76 | Wyandotte County | $25,797 |
| 77 | Reno County | $25,787 |
| 78 | Rooks County | $25,734 |
| 79 | Ellis County | $25,713 |
| 80 | Greenwood County | $25,573 |
| 81 | Lyon County | $25,491 |
| 82 | Graham County | $25,470 |
| 83 | Cowley County | $25,441 |
| 84 | Douglas County | $25,292 |
| 85 | Labette County | $25,160 |
| 86 | Smith County | $25,016 |
| 87 | Russell County | $24,936 |
| 88 | Marion County | $24,859 |
| 89 | Rice County | $24,437 |
| 90 | Doniphan County | $24,355 |
| 91 | Wilson County | $24,330 |
| 92 | Allen County | $24,149 |
| 93 | Rush County | $24,144 |
| 94 | Cherokee County | $23,976 |
| 95 | Norton County | $23,846 |
| 96 | Montgomery County | $23,785 |
| 97 | Pawnee County | $23,635 |
| 98 | Riley County | $22,909 |
| 99 | Jewell County | $22,783 |
| 100 | Bourbon County | $22,710 |
* All values are inflation-adjusted
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