county benchmark · Illinois
Median household income, 2020-2024
Across 102 counties in Illinois. Every rank carries its margin of error.
Distribution
| Percentile | Value |
|---|---|
| 10th percentile | $56,504 |
| 25th | $62,136 |
| Median | $66,532 |
| 75th | $74,612 |
| 90th percentile | $90,994 |
Highest counties
DuPage County leads reliably only from rank 5 downwards. Its estimate range overlaps those of the ranks above 5, which therefore cannot be separated from it at 90 % confidence.
| Rank | County | Estimate | Range (90 %) | Source |
|---|---|---|---|---|
| 1 | DuPage County | $112,096 | $110,489 – $113,703 | evidence → |
| 2 | Kendall County | $111,601 | $108,344 – $114,858 | evidence → |
| 3 | Lake County | $110,416 | $108,669 – $112,163 | evidence → |
| 4 | Will County | $109,984 | $108,165 – $111,803 | evidence → |
| 5 | McHenry County | $104,802 | $102,624 – $106,980 | evidence → |
| 6 | Kane County | $103,163 | $101,081 – $105,245 | evidence → |
| 7 | Monroe County | $102,880 | $97,448 – $108,312 | evidence → |
| 8 | Piatt County | $94,811 | $86,742 – $102,880 | evidence → |
| 9 | Calhoun County | $93,203 | $82,889 – $103,517 | evidence → |
| 10 | Grundy County | $92,235 | $84,980 – $99,490 | evidence → |
| 11 | Woodford County | $91,483 | $86,957 – $96,009 | evidence → |
| 12 | Clinton County | $86,588 | $82,124 – $91,052 | evidence → |
| 13 | Boone County | $84,571 | $80,130 – $89,012 | evidence → |
| 14 | Cook County | $83,498 | $82,868 – $84,128 | evidence → |
| 15 | Menard County | $82,176 | $79,055 – $85,297 | evidence → |
| 16 | Ogle County | $82,132 | $79,001 – $85,263 | evidence → |
| 17 | Effingham County | $80,404 | $76,935 – $83,873 | evidence → |
| 18 | Jersey County | $80,361 | $72,492 – $88,230 | evidence → |
| 19 | McLean County | $79,905 | $77,361 – $82,449 | evidence → |
| 20 | Washington County | $78,224 | $71,919 – $84,529 | evidence → |
Machine access — free, no API key
Every figure shown here about Median household income, 2020-2024 — Illinois can also be queried live: FACTANKER runs an MCP server at https://factanker.com/mcp (tools: lookup_entity, get_facts, query_template, search_facts) and a REST endpoint at https://factanker.com/api/get_facts. Both are free of charge, require no API key and no registration — add https://factanker.com/mcp as a connector in Claude, ChatGPT or Copilot. Every answer carries its source document and a citation reference. Setup: /quickstart.