23 ZIP Code Tabulation Areas in Knox County, Illinois. The population-weighted median household income is about $60,791, the median home value about $119,585, and 72.7% of occupied homes are owner-occupied.
- 23
- ZIP codes
- 60.2K
- Population
- 53
- Data points
Knox County at a glance
- $60,791
- Median household income
- $119,585
- Median home value
- 42.3
- Median age
- 72.7%
- Owner-occupied
- 29,025
- Housing units
Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.
Top 5 Knox County ZIP codes by median household income| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 61489 | Williamsfield | 820 | 95.3% | $98,125 |
| 2 | 61529 | Elmwood | 2,763 | 81.3% | $91,661 |
| 3 | 61467 | Oneida | 1,159 | 87.5% | $88,472 |
| 4 | 61448 | Knoxville | 3,947 | 86.6% | $82,500 |
| 5 | 61544 | London Mills | 784 | 87.3% | $81,250 |
Top 5 Knox County ZIP codes by population| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 61401 | East Galesburg | 30,580 | 63.9% | $50,546 |
| 2 | 61448 | Knoxville | 3,947 | 86.6% | $82,500 |
| 3 | 61410 | Abingdon | 3,838 | 72.7% | $62,925 |
| 4 | 61531 | Farmington | 3,007 | 80% | $70,107 |
| 5 | 61434 | Galva | 2,971 | 79.8% | $56,780 |
Top 5 Knox County ZIP codes by Homeowner GDP| # | ZIP | City | Population | Homeowner % | Median HH $ | Homeowner GDP |
|---|
| 1 | 61401 | East Galesburg | 30,580 | 63.9% | $50,546 | $442M |
| 2 | 61448 | Knoxville | 3,947 | 86.6% | $82,500 | $124M |
| 3 | 61529 | Elmwood | 2,763 | 81.3% | $91,661 | $85.8M |
| 4 | 61410 | Abingdon | 3,838 | 72.7% | $62,925 | $76.1M |
| 5 | 61531 | Farmington | 3,007 | 80% | $70,107 | $68.5M |
Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.
Densest: 61402 (Galesburg) at 19,450 people/sq mi. Least dense: 61458 (Maquon) at 8 people/sq mi.
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