ZIP code · Portland · Texas · United States
ZIP code 78374 — Portland
ZIP code 78374 serves Portland, Texas.
- Postal code
- 78374Single source Value from one source, not cross-checked.
- City
- Portland
- County
- San Patricio
- State
- Texas
- Country
- United States
- Coordinates
- 27.8935, -97.3169 — precision precise (locality)
View on OpenStreetMap
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