Coles County, Illinois ZIP codes
6 ZIP codes are in Coles County, plus 10 that cross in from neighboring counties. It's part of the Charleston-Mattoon, IL micro area.
- ZIP codes
- 6
- Population in these ZIPs
- 46,409
- Avg. median income
- $56,600population-weighted
- Cities & towns
- 6
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Coles County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 61912 | Ashmore | 1,255 | $74,954 | $142,100 |
| 61920 | Charleston | 20,951 | $52,429 | $165,900 |
| 61931 | Humboldt | 1,350 | $74,125 | $148,000 |
| 61938 | Mattoon | 20,350 | $57,503 | $130,100 |
| 61943 | Oakland | 1,396 | $54,196 | $130,400 |
| 62440 | Lerna | 1,107 | $79,605 | $185,900 |
ZIP codes partly in Coles County
These ZIP codes are mostly in a neighboring county but cover part of Coles County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 61910 | Arcola | Douglas County | 4,769 | $88,538 | $166,900 |
| 61911 | Arthur | Moultrie County | 4,508 | $82,633 | $199,800 |
| 61928 | Gays | Moultrie County | 776 | $118,271 | $194,700 |
| 61930 | Hindsboro | Douglas County | 687 | $79,531 | $108,000 |
| 61933 | Kansas | Edgar County | 1,286 | $75,938 | $117,500 |
| 61951 | Sullivan | Moultrie County | 7,787 | $71,905 | $198,900 |
| 62420 | Casey | Clark County | 4,299 | $65,771 | $135,900 |
| 62447 | Neoga | Cumberland County | 3,210 | $87,292 | $175,900 |
| 62469 | Trilla | Cumberland County | 552 | $116,440 | $154,200 |
| 62474 | Westfield | Clark County | 626 | $67,083 | $108,100 |
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 Coles County
Nearby counties
Frequently asked questions
How many ZIP codes are in Coles County, Illinois?
6 ZIP codes are mainly in Coles County, and 10 more ZIP codes from neighboring areas reach partly into it.
What cities are in Coles County?
ZIP codes in Coles County use the city names Ashmore, Charleston, Humboldt, Lerna, Mattoon and Oakland.
What metro area is Coles County in?
Coles County is part of the Charleston-Mattoon, IL micropolitan statistical area.