ZIP code · San Perlita · Texas · United States
ZIP code 78590 — San Perlita
ZIP code 78590 serves San Perlita, Texas.
- Postal code
- 78590Single source Value from one source, not cross-checked.
- City
- San Perlita
- County
- Willacy FIPS 48489
- State
- Texas
- Country
- United States
- Coordinates
- 26.5012, -97.6397 — precision precise (locality)
View on OpenStreetMap - Population
- 449 (ZCTA, ACS 5-year)
- Population density
- 449 / sq mi
- Land area
- 1 sq mi (2.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $77,750
- Per-capita income
- $22,456
- Median age
- 31.3
- Households
- 109
- Housing units
- 159
- Median home value
- $54,500
- Congressional district
- TX-34 (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
- 956Telephone 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 78590 with another ZIP · ZIPs within 25 miles · distance from 78590
Map of ZIP code 78590
Climate — monthly normals
Warmest month Aug (avg high 98°F), coldest Jan (avg low 48°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 71 | 76 | 81 | 87 | 91 | 95 | 97 | 98 | 93 | 88 | 80 | 73 |
| Avg low °F | 48 | 52 | 58 | 63 | 70 | 74 | 75 | 75 | 72 | 64 | 56 | 50 |
| Precip in | 1.0 | 1.0 | 1.4 | 1.4 | 3.0 | 2.6 | 2.5 | 2.1 | 5.6 | 3.0 | 0.9 | 1.1 |
NOAA 1991–2020 climate normals from the nearest station: RAYMONDVILLE (9.3 mi) · NOAA NCEI
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