ZIP code · Charter Oak · Iowa · United States
ZIP code 51439 — Charter Oak
ZIP code 51439 serves Charter Oak, Iowa.
- Postal code
- 51439Single source Value from one source, not cross-checked.
- City
- Charter Oak
- County
- Crawford
- State
- Iowa
- Country
- United States
- Coordinates
- 42.0707, -95.5992 — precision precise (locality)
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About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page