Home > IL > St. Clair County > Belleville > Zip 62221

Zip Code 62221 — Belleville, IL

62221 is a ZIP Code associated with Belleville, IL, located within St. Clair. The postal region supports an estimated population of 29,875 residents across Data Pending housing units, with a population density of 329.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.511870, -89.899220)

Data MetricLocal Statistic
Postal / Zip Code62221
Primary CityBelleville
State / ProvinceIL
CountySt. Clair
Total Population29,875
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density329.8 people/sq mi
TimezoneAmerica/Chicago

How 62221 Compares

MetricZIP 62221St. Clair CountyIL State Average
Population29,875247,74312,694,745
Median IncomeData PendingN/AN/A
Population Density329.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 62225Scott Air Force Base3.1 mi5,242N/A
Zip 62220Belleville5.5 mi19,152N/A
Zip 62226Belleville5.7 mi28,255N/A
Zip 62269O'Fallon6.0 mi35,923N/A
Zip 62243Freeburg6.5 mi6,418N/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 →