Galesburg, IL micro area ZIP codes
The Galesburg, IL micropolitan statistical area (CBSA 23660) covers 1 county in Illinois and 17 ZIP codes.
- ZIP codes
- 17
- Population
- 49,261
- Avg. median income
- $58,800population-weighted
- Counties
- 1
Click anywhere on the map to see which ZIP code it's in.
Counties in the Galesburg, IL area
ZIP codes in the Galesburg, IL area
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 61401 | Galesburg | Knox County | 30,580 | $50,546 | $105,400 |
| 61402 | Galesburg | Knox County | 1,623 | — | — |
| 61410 | Abingdon | Knox County | 3,838 | $62,925 | $97,800 |
| 61414 | Altona | Knox County | 696 | $48,929 | $116,200 |
| 61428 | Dahinda | Knox County | 1,278 | $77,143 | $353,500 |
| 61430 | East Galesburg | Knox County | 713 | $79,333 | $123,700 |
| 61436 | Gilson | Knox County | 745 | $76,000 | $205,000 |
| 61439 | Henderson | Knox County | 299 | $59,125 | $113,900 |
| 61448 | Knoxville | Knox County | 3,947 | $82,500 | $163,300 |
| 61458 | Maquon | Knox County | 656 | $65,461 | $77,300 |
| 61467 | Oneida | Knox County | 1,159 | $88,472 | $137,000 |
| 61472 | Rio | Knox County | 453 | $76,500 | $150,000 |
| 61474 | Saint Augustine | Knox County | 221 | $59,583 | $79,100 |
| 61485 | Victoria | Knox County | 417 | $59,306 | $106,100 |
| 61488 | Wataga | Knox County | 1,084 | $68,333 | $139,300 |
| 61489 | Williamsfield | Knox County | 820 | $98,125 | $150,000 |
| 61572 | Yates City | Knox County | 732 | $73,125 | $134,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Frequently asked questions
How many ZIP codes are in the Galesburg, IL micro area?
17 ZIP codes, based on each ZIP code's main county.
Which counties make up the Galesburg, IL area?
Knox County.
What is an MSA?
A metropolitan statistical area (MSA) is a core city of 50,000+ people plus the surrounding counties tied to it by commuting, as defined by the U.S. Office of Management and Budget. Micropolitan areas have a core of 10,000–50,000. Together they are called core-based statistical areas (CBSAs).