Williamson ZIP codes, Illinois
No ZIP code is named for Williamson, IL; addresses there use a neighbouring town's name. The ZIP code covering it is 62088. Its area code is 618.
- USPS city name
- 0 ZIP codes
- Overlapping the city
- 1 more
- Population
- 160
- Area code
- 618
- County
- Macoupin County
- State
- Illinois
NANPA lists no telephone rate centre for Williamson itself, so these are the area codes of the nearest one, Staunton (0.0 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes covering Williamson
These ZIP codes cover part of Williamson but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
62088 | Staunton , IL | Standard | 6,400 | $62,808 | $145,800 |
Map of Williamson ZIP codes
The ZIP codes of Williamson, IL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Williamson
The nearest larger towns are Livingston (884 people, 1.1 mi), Staunton (4,298 people, 2.4 mi) and New Douglas (346 people, 5.2 mi).
| Town | Population | Distance |
|---|---|---|
| Staunton | 4,298 | 2.4 mi |
| Gillespie | 2,815 | 10.2 mi |
| Holiday Shores | 2,782 | 10.3 mi |
| Litchfield | 6,834 | 14.2 mi |
| Highland | 10,262 | 15.4 mi |
| Bethalto | 9,239 | 16.2 mi |
| Rosewood Heights | 4,229 | 18.0 mi |
| Edwardsville | 26,474 | 18.1 mi |
| Wood River | 10,279 | 18.9 mi |
| Troy | 11,647 | 19.2 mi |
| Glen Carbon | 13,977 | 19.6 mi |
| East Alton | 5,689 | 19.8 mi |
| Hillsboro | 5,803 | 20.4 mi |
| Maryville | 8,316 | 20.8 mi |
More nearby: every ZIP code in Macoupin County · Illinois ZIP codes
Cite this page
zipcodes.pro. “Williamson, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/williamson
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