Home > IL > Williamson County > Johnston City > Zip 62951

Zip Code 62951 — Johnston City, IL

62951 is a ZIP Code associated with Johnston City, IL, located within Williamson. The postal region supports an estimated population of 5,342 residents across Data Pending housing units, with a population density of 74.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (37.826370, -88.926090)

Data MetricLocal Statistic
Postal / Zip Code62951
Primary CityJohnston City
State / ProvinceIL
CountyWilliamson
Total Population5,342
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density74.6 people/sq mi
TimezoneAmerica/Chicago

How 62951 Compares

MetricZIP 62951Williamson CountyIL State Average
Population5,34267,36812,694,745
Median IncomeData PendingN/AN/A
Population Density74.6 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 62841Freeman Spur4.4 mi118N/A
Zip 62896West Frankfort4.7 mi10,627N/A
Zip 62948Herrin5.4 mi12,758N/A
Zip 62933Energy6.3 mi1,101N/A
Zip 62874Orient6.9 mi440N/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 →