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Zip Code 61931 — Humboldt, IL

ZIP Code 61931 is associated with Humboldt, IL, in Coles County. The listed population estimate is 1,350; estimated density is 16.0 people per square mile. Among records with population estimates, it ranks #4 of 6 in Coles County and #801 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.590670, -88.358830)

Data MetricLocal Statistic
Postal / Zip Code61931
Primary CityHumboldt
State / ProvinceIL
CountyColes
Total Population1,350
Population Density16.0 people/sq mi
TimezoneAmerica/Chicago

How 61931 Compares

MetricZIP 61931Coles County recordsIL records
Population estimate1,35046,409 (sum)12,694,745 (sum)
Population Density16.0 /sq mi----
County population rank#4 of 6----
State population rank#801 of 1,390----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in IL

ZIP CodeCityDistancePopulation estimate
ZIP 61910Arcola6.5 mi4,769
ZIP 61938Mattoon7.7 mi20,350
ZIP 61911Arthur9.9 mi4,508
ZIP 61920Charleston12.0 mi20,951
ZIP 61928Gays12.1 mi776

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →