ZIP code · Sinton · Texas · United States
ZIP code 78387 — Sinton
ZIP code 78387 serves Sinton, Texas.
- Postal code
- 78387Single source Value from one source, not cross-checked.
- City
- Sinton
- County
- San Patricio FIPS 48409
- State
- Texas
- Country
- United States
- Coordinates
- 28.0339, -97.5196 — precision precise (locality)
View on OpenStreetMap - Population
- 9,604 (ZCTA, ACS 5-year)
- Population density
- 56 / sq mi
- Land area
- 172.2 sq mi (445.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $48,000
- Per-capita income
- $22,983
- Median age
- 35.4
- Households
- 3,138
- Housing units
- 3,762
- Median home value
- $122,400
- Median gross rent
- $918 / month
- Congressional district
- TX-27 (119th Congress)
- USDA hardiness zone
- 9b (25 to 30 °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
- 361Telephone 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 78387 with another ZIP · ZIPs within 25 miles · distance from 78387
Map of ZIP code 78387
Climate — monthly normals
Warmest month Aug (avg high 95°F), coldest Jan (avg low 45°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 66 | 70 | 75 | 81 | 86 | 91 | 93 | 95 | 90 | 85 | 75 | 68 |
| Avg low °F | 45 | 49 | 56 | 62 | 69 | 74 | 76 | 76 | 71 | 63 | 54 | 47 |
| Precip in | 1.6 | 1.9 | 2.4 | 1.8 | 3.3 | 3.4 | 2.8 | 2.5 | 5.3 | 3.9 | 2.4 | 1.7 |
NOAA 1991–2020 climate normals from the nearest station: SINTON (1.6 mi) · NOAA NCEI
Places in ZIP 78387
- 7 schools
- 1 supermarkets
- 3 restaurants & cafés
- 4 parks
- 7 places of worship
- 3 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