The median income of St. Charles residents was $31,637 per year, adjusted for inflation. It had 27,872 households with a population of 69,576.
The city with the highest median resident income in the state was Country Life Acres with $105,313 per year after adjusting for inflation – $73,676 more than St. Charles. It had 33 households with a population of 84.
The city with the lowest median resident income in the state was Montreal with $2,499 per year after adjusting for inflation – $29,138 less than St. Charles. It had 55 households with a population of 170.
Top 100 cities by earnings per resident (2018)
| Rank | City | Earnings per resident |
|---|---|---|
| 1 | Country Life Acres | $105,313 |
| 2 | Ladue | $83,025 |
| 3 | Frontenac | $74,673 |
| 4 | Westwood | $74,000 |
| 5 | Glendale | $68,452 |
| 6 | Warson Woods | $66,818 |
| 7 | Loch Lloyd | $61,375 |
| 8 | Town and Country | $60,192 |
| 9 | Des Peres | $59,569 |
| 10 | Clarkson Valley | $56,250 |
| 11 | Foster | $56,086 |
| 12 | Wasola | $54,044 |
| 13 | Lake Winnebago | $53,750 |
| 14 | Creve Coeur | $52,649 |
| 15 | Wildwood | $52,216 |
| 16 | Brentwood | $51,752 |
| 17 | South Fork | $51,583 |
| 18 | Weldon Spring | $51,431 |
| 19 | Weatherby Lake | $50,741 |
| 20 | Emerald Beach | $50,167 |
| 21 | Lake Waukomis | $48,750 |
| 22 | Parkville | $48,688 |
| 23 | Dardenne Prairie | $48,469 |
| 24 | Crystal Lake Park | $48,438 |
| 25 | Grantwood Village | $48,182 |
| 26 | Rock Hill | $48,132 |
| 27 | Defiance | $47,895 |
| 28 | Chesterfield | $47,752 |
| 29 | Cottleville | $47,713 |
| 30 | Webster Groves | $47,507 |
| 31 | Eureka | $47,250 |
| 32 | Iatan | $46,932 |
| 33 | Lake Lotawana | $46,918 |
| 34 | Fenton | $46,779 |
| 35 | Richmond Heights | $46,434 |
| 36 | Oaks | $46,250 |
| 37 | Kirkwood | $45,840 |
| 38 | Wardsville | $44,427 |
| 39 | Lee's Summit | $42,962 |
| 40 | Glen Echo Park | $42,917 |
| 41 | Greenwood | $42,908 |
| 42 | Oakwood | $42,813 |
| 43 | St. Paul | $42,500 |
| 44 | LaBarque Creek | $42,372 |
| 45 | Pasadena Park | $42,045 |
| 46 | Ballwin | $41,862 |
| 47 | Brewer | $41,250 |
| 47 | Riverview Estates | $41,250 |
| 47 | Oakland | $41,250 |
| 50 | Twin Oaks | $41,083 |
| 51 | Taos | $41,005 |
| 52 | Clayton | $40,863 |
| 53 | Flint Hill | $40,859 |
| 54 | Manchester | $40,807 |
| 55 | Wentzville | $40,729 |
| 56 | Fremont Hills | $40,625 |
| 57 | Pasadena Hills | $40,600 |
| 58 | Lake St. Louis | $40,470 |
| 59 | O'Fallon | $40,245 |
| 60 | Raymore | $40,039 |
| 61 | Irena | $40,000 |
| 62 | Olivette | $39,918 |
| 63 | Sunset Hills | $39,653 |
| 64 | Crestwood | $39,591 |
| 65 | Loma Linda | $39,297 |
| 66 | Fremont | $38,977 |
| 67 | Josephville | $38,958 |
| 67 | Lake Tapawingo | $38,958 |
| 69 | Country Club | $38,908 |
| 70 | Cedar Hill | $38,563 |
| 71 | Tindall | $38,542 |
| 72 | Smithville | $38,364 |
| 73 | Elmira | $38,333 |
| 74 | Ellisville | $38,274 |
| 74 | Harwood | $38,274 |
| 76 | Wood Heights | $38,229 |
| 77 | St. Martins | $38,074 |
| 78 | St. Peters | $38,040 |
| 79 | Wilbur Park | $37,917 |
| 80 | Lupus | $37,857 |
| 81 | Glenaire | $37,647 |
| 82 | Concord | $37,512 |
| 83 | Oakwood Park | $37,431 |
| 84 | Old Jamestown | $37,294 |
| 85 | Shrewsbury | $37,285 |
| 86 | Grain Valley | $37,201 |
| 87 | Lone Jack | $37,170 |
| 88 | Oakville | $37,153 |
| 89 | Platte Woods | $37,000 |
| 90 | Harrisburg | $36,964 |
| 91 | Rensselaer | $36,771 |
| 92 | Umber View Heights | $36,667 |
| 93 | Barnhart | $36,602 |
| 94 | Shoal Creek Drive | $36,406 |
| 95 | Mackenzie | $36,328 |
| 96 | Shoal Creek Estates | $36,250 |
| 97 | Valley Park | $36,126 |
| 98 | Blue Springs | $35,860 |
| 99 | Passaic | $35,625 |
| 100 | Lawson | $35,568 |
* All values are inflation-adjusted
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