Johnston City, IL ZIP code
The ZIP code for Johnston City, Illinois is 62951. It is in Williamson County.
- Population in these ZIPs
- 5,342
- Avg. median income
- $50,700population-weighted
- Typical home value
- $109,900population-weighted
- Metro area
- Marion-Herrin, IL
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Johnston City, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 62951 | 5,342 | $50,657 | $109,900 |
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
Cities near Johnston City
- Freeman Spur 4 mi
- West Frankfort 5 mi
- Herrin 5 mi
- Energy 6 mi
- Orient 7 mi
- Zeigler 8 mi
- Pittsburg 8 mi
- Marion 8 mi
- Colp 9 mi
- Carterville 9 mi
- Logan 10 mi
- Royalton 11 mi
Frequently asked questions
What is the ZIP code for Johnston City, IL?
The ZIP code for Johnston City, IL is 62951.
What county is Johnston City, Illinois in?
Johnston City ZIP codes are in Williamson County.