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 FIPS 48409
- State
- Texas
- Country
- United States
- Coordinates
- 27.8935, -97.3169 — precision precise (locality)
View on OpenStreetMap - Population
- 20,152 (ZCTA, ACS 5-year)
- Population density
- 1,086 / sq mi
- Land area
- 18.6 sq mi (48.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $81,580
- Per-capita income
- $39,033
- Median age
- 35.6
- Households
- 7,277
- Housing units
- 8,426
- Median home value
- $225,800
- Median gross rent
- $1,492 / month
- Congressional district
- TX-27 (119th Congress)
- USDA hardiness zone
- 10a (30 to 35 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 361 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 78374 with another ZIP · ZIPs within 25 miles · distance from 78374
Map of ZIP code 78374
Climate — monthly normals
Warmest month Aug (avg high 93°F), coldest Jan (avg low 47°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 66 | 70 | 75 | 81 | 86 | 90 | 92 | 93 | 89 | 84 | 75 | 68 |
| Avg low °F | 47 | 51 | 58 | 63 | 71 | 75 | 76 | 77 | 73 | 66 | 56 | 49 |
| Precip in | 1.4 | 1.4 | 2.3 | 2.0 | 3.3 | 3.5 | 2.5 | 2.8 | 5.4 | 2.7 | 2.0 | 1.9 |
NOAA 1991–2020 climate normals from the nearest station: CORPUS CHRISTI NWS (14.0 mi) · NOAA NCEI
Places in ZIP 78374
- 8 schools
- 2 hospitals & clinics
- 2 doctors & dentists
- 5 pharmacies
- 2 supermarkets
- 34 restaurants & cafés
- 12 parks
- 2 playgrounds
- 6 gyms & sports centres
- 1 libraries
- 1 post offices
- 10 places of worship
- 3 banks
- 6 gas stations
- 4 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
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 · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page