county benchmark · Illinois
Median household income, 2017-2021
Across 102 counties in Illinois. Every rank carries its margin of error.
Distribution
| Percentile | Value |
|---|---|
| 10th percentile | $49,125 |
| 25th | $53,830 |
| Median | $58,780 |
| 75th | $65,948 |
| 90th percentile | $76,317 |
Highest counties
Kendall County leads reliably only from rank 4 downwards. Its estimate range overlaps those of the ranks above 4, which therefore cannot be separated from it at 90 % confidence.
| Rank | County | Estimate | Range (90 %) | Source |
|---|---|---|---|---|
| 1 | Kendall County | $101,816 | $97,927 – $105,705 | evidence → |
| 2 | DuPage County | $100,292 | $98,999 – $101,585 | evidence → |
| 3 | Lake County | $97,127 | $95,514 – $98,740 | evidence → |
| 4 | Will County | $95,751 | $94,537 – $96,965 | evidence → |
| 5 | McHenry County | $93,801 | $91,422 – $96,180 | evidence → |
| 6 | Monroe County | $92,950 | $88,792 – $97,108 | evidence → |
| 7 | Kane County | $88,935 | $87,176 – $90,694 | evidence → |
| 8 | Grundy County | $81,764 | $77,919 – $85,609 | evidence → |
| 9 | Menard County | $79,743 | $75,800 – $83,686 | evidence → |
| 10 | Piatt County | $77,559 | $71,740 – $83,378 | evidence → |
| 11 | Woodford County | $76,486 | $72,638 – $80,334 | evidence → |
| 12 | Calhoun County | $74,792 | $68,745 – $80,839 | evidence → |
| 13 | Boone County | $74,076 | $70,197 – $77,955 | evidence → |
| 14 | Clinton County | $72,468 | $69,080 – $75,856 | evidence → |
| 15 | Cook County | $72,121 | $71,598 – $72,644 | evidence → |
| 16 | Jersey County | $71,655 | $65,516 – $77,794 | evidence → |
| 17 | McLean County | $70,339 | $68,196 – $72,482 | evidence → |
| 18 | Tazewell County | $68,860 | $67,506 – $70,214 | evidence → |
| 19 | Ogle County | $67,534 | $64,656 – $70,412 | evidence → |
| 20 | Putnam County | $67,419 | $61,984 – $72,854 | evidence → |
Machine access — free, no API key
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