City · Texas · United States
Markham, TX — ZIP codes
1 ZIP code · Matagorda County
- City
- Markham
- County
- Matagorda
- State
- Texas
- Country
- United States
- Postal code
- 77456Single source
- Coordinates
- 28.9547, -96.0928 View on OpenStreetMap
- Area code
- 979
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 77456 | Markham | Single source |
Sources and verification
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 · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Last generated : 2026-08-21. Report an error.