Charleston-Mattoon, IL micro area ZIP codes
The Charleston-Mattoon, IL micropolitan statistical area (CBSA 16660) covers 1 county in Illinois and 6 ZIP codes.
- ZIP codes
- 6
- Population
- 46,409
- Avg. median income
- $56,600population-weighted
- Counties
- 1
Click anywhere on the map to see which ZIP code it's in.
Counties in the Charleston-Mattoon, IL area
ZIP codes in the Charleston-Mattoon, IL area
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 61912 | Ashmore | Coles County | 1,255 | $74,954 | $142,100 |
| 61920 | Charleston | Coles County | 20,951 | $52,429 | $165,900 |
| 61931 | Humboldt | Coles County | 1,350 | $74,125 | $148,000 |
| 61938 | Mattoon | Coles County | 20,350 | $57,503 | $130,100 |
| 61943 | Oakland | Coles County | 1,396 | $54,196 | $130,400 |
| 62440 | Lerna | Coles County | 1,107 | $79,605 | $185,900 |
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 Charleston-Mattoon, IL micro area?
6 ZIP codes, based on each ZIP code's main county.
Which counties make up the Charleston-Mattoon, IL area?
Coles 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).