Smithton, IL ZIP code
The ZIP code for Smithton, Illinois is 62285. It is in St. Clair County.
- Population in these ZIPs
- 4,239
- Avg. median income
- $136,300population-weighted
- Typical home value
- $309,300population-weighted
- Metro area
- St. Louis, MO-IL
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Smithton, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 62285 | 4,239 | $136,345 | $309,300 |
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 Smithton
- Hecker 6 mi
- Freeburg 7 mi
- Millstadt 7 mi
- Belleville 8 mi
- New Athens 8 mi
- Waterloo 10 mi
- Columbia 11 mi
- East Carondelet 12 mi
- Dupo 12 mi
- Red Bud 13 mi
- Mascoutah 13 mi
- Lenzburg 13 mi
Frequently asked questions
What is the ZIP code for Smithton, IL?
The ZIP code for Smithton, IL is 62285.
What county is Smithton, Illinois in?
Smithton ZIP codes are in St. Clair County.