Richest & Poorest Counties in Illinois
Illinois has 102 counties. The wealthiest county by median household income is DuPage County at $112,096 , while the lowest-income county is Pulaski County at $42,463 . The statewide median household income is $83,390, compared to the national median of $75,149.
Geography
Metric
Illinois — Median Household Income by County
Source: U.S. Census Bureau — ACS 5-Year Estimates. All values are estimates subject to margin of error.
Richest Counties in Illinois
Top 10 counties ranked by median household income.
| # | County | Income |
|---|---|---|
| 1 | DuPage County | $112,096 |
| 2 | Kendall County | $111,601 |
| 3 | Lake County | $110,416 |
| 4 | Will County | $109,984 |
| 5 | McHenry County | $104,802 |
| 6 | Kane County | $103,163 |
| 7 | Monroe County | $102,880 |
| 8 | Piatt County | $94,811 |
| 9 | Calhoun County | $93,203 |
| 10 | Grundy County | $92,235 |
Poorest Counties in Illinois
Bottom 10 counties ranked by median household income.
| # | County | Income |
|---|---|---|
| 102 | Pulaski County | $42,463 |
| 101 | Alexander County | $47,043 |
| 100 | Jackson County | $48,763 |
| 99 | McDonough County | $52,795 |
| 98 | Saline County | $53,117 |
| 97 | Hardin County | $54,271 |
| 96 | White County | $54,813 |
| 95 | Lawrence County | $55,324 |
| 94 | Wayne County | $55,521 |
| 93 | Union County | $55,728 |
All 102 Counties Ranked
Every county in Illinois ranked by median household income. Click any county for its full profile.
About This Data
All figures are estimates from the American Community Survey 2024 5-Year Estimates, published by the U.S. Census Bureau. Values are subject to sampling variability and margin of error.
Rankings are within Illinois only and may differ from national rankings. For more information, see our methodology.