Freeburg, IL ZIP code
The ZIP code for Freeburg, Illinois is 62243. It is in St. Clair County.
- Population in these ZIPs
- 6,418
- Avg. median income
- $103,300population-weighted
- Typical home value
- $265,500population-weighted
- Metro area
- St. Louis, MO-IL
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Freeburg, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 62243 | 6,418 | $103,342 | $265,500 |
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 Freeburg
- Mascoutah 6 mi
- Smithton 7 mi
- New Athens 7 mi
- Belleville 8 mi
- Scott Air Force Base 9 mi
- Lenzburg 9 mi
- Hecker 10 mi
- Saint Libory 10 mi
- Millstadt 12 mi
- O Fallon 13 mi
- Marissa 13 mi
- New Baden 13 mi
Frequently asked questions
What is the ZIP code for Freeburg, IL?
The ZIP code for Freeburg, IL is 62243.
What county is Freeburg, Illinois in?
Freeburg ZIP codes are in St. Clair County.