The median income of Phelps County residents was $24,011 per year, adjusted for inflation. It had 17,981 households with a population of 44,630.
The county with the highest median resident income in the state was Platte County with $39,879 per year after adjusting for inflation – $15,868 more than Phelps County. It had 39,305 households with a population of 100,682.
The county with the lowest median resident income in the state was Mississippi County with $14,973 per year after adjusting for inflation – $9,038 less than Phelps County. It had 5,026 households with a population of 13,574.
Top 100 counties by earnings per resident (2019)
| Rank | County | Earnings per resident |
|---|---|---|
| 1 | Platte County | $39,879 |
| 2 | St. Charles County | $39,314 |
| 3 | Clay County | $35,437 |
| 4 | St. Louis County | $35,387 |
| 5 | Cass County | $34,558 |
| 6 | Cole County | $33,462 |
| 7 | Clinton County | $32,199 |
| 8 | Jefferson County | $32,137 |
| 9 | Jackson County | $31,562 |
| 10 | Osage County | $31,440 |
| 11 | Lincoln County | $31,168 |
| 12 | Franklin County | $30,619 |
| 13 | Ray County | $30,594 |
| 14 | Andrew County | $30,478 |
| 15 | Christian County | $30,295 |
| 16 | Moniteau County | $29,996 |
| 17 | Lafayette County | $29,888 |
| 18 | Boone County | $29,043 |
| 19 | Warren County | $29,000 |
| 20 | Ste. Genevieve County | $28,897 |
| 21 | Callaway County | $28,863 |
| 22 | Holt County | $28,772 |
| 23 | Perry County | $28,678 |
| 24 | Ralls County | $28,251 |
| 25 | Atchison County | $28,101 |
| 26 | DeKalb County | $28,051 |
| 27 | Cooper County | $27,894 |
| 28 | Montgomery County | $27,625 |
| 29 | Scotland County | $27,390 |
| 30 | Livingston County | $26,939 |
| 31 | Monroe County | $26,924 |
| 32 | Linn County | $26,909 |
| 33 | Miller County | $26,846 |
| 34 | Maries County | $26,802 |
| 35 | Newton County | $26,793 |
| 36 | Gasconade County | $26,785 |
| 37 | Cape Girardeau County | $26,761 |
| 38 | Caldwell County | $26,571 |
| 39 | Bates County | $26,493 |
| 40 | Greene County | $26,445 |
| 41 | Buchanan County | $26,406 |
| 42 | Worth County | $26,183 |
| 43 | Webster County | $26,009 |
| 44 | Carroll County | $25,904 |
| 45 | Johnson County | $25,893 |
| 46 | Daviess County | $25,878 |
| 47 | Jasper County | $25,861 |
| 48 | Randolph County | $25,739 |
| 49 | Gentry County | $25,652 |
| 50 | Marion County | $25,606 |
| 51 | Clark County | $25,281 |
| 52 | Laclede County | $25,278 |
| 53 | Mercer County | $25,028 |
| 54 | Sullivan County | $25,013 |
| 55 | Vernon County | $25,009 |
| 56 | Howard County | $24,994 |
| 57 | Camden County | $24,976 |
| 58 | Putnam County | $24,892 |
| 59 | Henry County | $24,875 |
| 60 | Shelby County | $24,780 |
| 61 | Macon County | $24,657 |
| 62 | Pettis County | $24,493 |
| 63 | Saline County | $24,437 |
| 64 | McDonald County | $24,130 |
| 65 | Pulaski County | $24,121 |
| 66 | Stone County | $24,046 |
| 67 | Phelps County | $24,011 |
| 68 | Lawrence County | $23,967 |
| 69 | Taney County | $23,883 |
| 70 | Chariton County | $23,881 |
| 71 | Barry County | $23,819 |
| 72 | St. Francois County | $23,815 |
| 73 | Lewis County | $23,806 |
| 74 | New Madrid County | $23,739 |
| 75 | Madison County | $23,587 |
| 76 | Dent County | $23,507 |
| 77 | Harrison County | $23,496 |
| 78 | Grundy County | $23,298 |
| 79 | Audrain County | $23,257 |
| 80 | Pike County | $23,088 |
| 81 | Scott County | $22,709 |
| 82 | Stoddard County | $22,608 |
| 83 | Barton County | $22,363 |
| 84 | Bollinger County | $22,355 |
| 85 | Schuyler County | $22,271 |
| 86 | Reynolds County | $22,173 |
| 87 | Crawford County | $22,158 |
| 88 | Polk County | $21,765 |
| 89 | Benton County | $21,691 |
| 90 | Howell County | $21,380 |
| 91 | Dallas County | $21,248 |
| 92 | Butler County | $21,207 |
| 93 | Cedar County | $21,190 |
| 94 | St. Clair County | $21,077 |
| 95 | Texas County | $21,045 |
| 96 | Dunklin County | $21,034 |
| 97 | Morgan County | $21,027 |
| 98 | Nodaway County | $20,924 |
| 99 | Dade County | $20,907 |
| 100 | Carter County | $20,879 |
* All values are inflation-adjusted
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