Humboldt, IL ZIP code
The ZIP code for Humboldt, Illinois is 61931. It is in Coles County.
- Population in these ZIPs
- 1,350
- Avg. median income
- $74,100population-weighted
- Typical home value
- $148,000population-weighted
- Metro area
- Charleston-Mattoon, IL
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Humboldt, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 61931 | 1,350 | $74,125 | $148,000 |
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
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Frequently asked questions
What is the ZIP code for Humboldt, IL?
The ZIP code for Humboldt, IL is 61931.
What county is Humboldt, Illinois in?
Humboldt ZIP codes are in Coles County.