Fenton, MO ZIP codes
Fenton, Missouri has 2 ZIP codes, including 1 PO Box ZIP. They are in Jefferson County and St. Louis County.
- Population in these ZIPs
- 45,354
- Avg. median income
- $97,600population-weighted
- Typical home value
- $351,600population-weighted
- Metro area
- St. Louis, MO-IL
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Fenton, MO ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 63026 | Jefferson County | 45,354 | $97,553 | $351,600 |
| 63099 PO Box | St. Louis County | — | — | — |
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 Fenton
- Valley Park 4 mi
- Ballwin 6 mi
- High Ridge 8 mi
- Saint Louis 10 mi
- Chesterfield 10 mi
- Arnold 10 mi
- Grover 10 mi
- Eureka 11 mi
- Maryland Heights 11 mi
- Saint Ann 11 mi
- Glencoe 12 mi
- Imperial 12 mi
Frequently asked questions
What county is Fenton, Missouri in?
Fenton ZIP codes are in Jefferson County and St. Louis County.
Which Fenton ZIP codes are PO Boxes?
63099 is a PO Box or single-organization ZIP code; it has no residential delivery area.