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Zip Code 61920 — Charleston, IL

61920 is a ZIP Code associated with Charleston, IL, located within Coles. 61920 ranks #1 out of 6 ZIP codes in Coles County by population (and #227 out of 1,396 in IL). The area supports an estimated population of 20,951 residents across Data Pending housing units, with a population density of 54.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.504150, -88.164480)

Data MetricLocal Statistic
Postal / Zip Code61920
Primary CityCharleston
State / ProvinceIL
CountyColes
Total Population20,951
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density54.5 people/sq mi
TimezoneAmerica/Chicago

How 61920 Compares

MetricZIP 61920Coles CountyIL State Average
Population20,95146,409 (Total)12,694,745 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density54.5 /sq mi----
County Pop Rank#1 of 6----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 61912Ashmore7.2 mi1,255N/A
Zip 62440Lerna9.2 mi1,107N/A
Zip 62474Westfield10.2 mi626N/A
Zip 61938Mattoon11.4 mi20,350N/A
Zip 61931Humboldt12.0 mi1,350N/A

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 →