Stark County, Illinois ZIP codes
5 ZIP codes are in Stark County, plus 5 that cross in from neighboring counties. It's part of the Peoria, IL metro area.
- ZIP codes
- 5
- Population in these ZIPs
- 5,642
- Avg. median income
- $62,900population-weighted
- Cities & towns
- 5
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Stark County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 61421 | Bradford | 1,231 | $65,833 | $132,100 |
| 61426 | Castleton | 41 | — | — |
| 61449 | La Fayette | 339 | $51,635 | $116,600 |
| 61483 | Toulon | 1,801 | $63,558 | $148,300 |
| 61491 | Wyoming | 2,230 | $62,500 | $145,100 |
ZIP codes partly in Stark County
These ZIP codes are mostly in a neighboring county but cover part of Stark County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 61345 | Neponset | Bureau County | 770 | $76,250 | $99,900 |
| 61434 | Galva | Henry County | 2,971 | $56,780 | $112,800 |
| 61443 | Kewanee | Henry County | 13,456 | $52,615 | $82,700 |
| 61479 | Speer | Marshall County | 95 | $135,313 | $205,300 |
| 61559 | Princeville | Peoria County | 3,595 | $101,200 | $242,600 |
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
Cities and towns in Stark County
Nearby counties
Frequently asked questions
How many ZIP codes are in Stark County, Illinois?
5 ZIP codes are mainly in Stark County, and 5 more ZIP codes from neighboring areas reach partly into it.
What cities are in Stark County?
ZIP codes in Stark County use the city names Bradford, Castleton, La Fayette, Toulon and Wyoming.
What metro area is Stark County in?
Stark County is part of the Peoria, IL metropolitan statistical area.