ZIP code · Rio Grande City · Texas · United States
ZIP code 78582 — Rio Grande City
ZIP code 78582 serves Rio Grande City, Texas.
- Postal code
- 78582Single source Value from one source, not cross-checked.
- City
- Rio Grande City
- County
- Starr FIPS 48427
- State
- Texas
- Country
- United States
- Coordinates
- 26.3942, -98.8104 — precision precise (locality)
View on OpenStreetMap - Population
- 44,883 (ZCTA, ACS 5-year)
- Population density
- 79 / sq mi
- Land area
- 565.3 sq mi (1,464 km²) (ZCTA, ACS 5-year)
- Median household income
- $41,452
- Per-capita income
- $18,089
- Median age
- 28.6
- Households
- 12,380
- Housing units
- 14,743
- Median home value
- $102,000
- Median gross rent
- $738 / month
- Congressional district
- TX-28 (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
- 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 78582 with another ZIP · ZIPs within 25 miles · distance from 78582
Map of ZIP code 78582
Climate — monthly normals
Warmest month Aug (avg high 99°F), coldest Jan (avg low 45°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 71 | 76 | 82 | 89 | 94 | 98 | 99 | 99 | 94 | 88 | 79 | 72 |
| Avg low °F | 45 | 50 | 56 | 63 | 70 | 74 | 75 | 75 | 71 | 63 | 54 | 47 |
| Precip in | 0.8 | 0.9 | 1.3 | 1.0 | 2.9 | 2.8 | 2.0 | 1.3 | 5.1 | 2.5 | 1.1 | 0.8 |
NOAA 1991–2020 climate normals from the nearest station: RIO GRANDE CITY (1.2 mi) · NOAA NCEI
Places in ZIP 78582
- 19 schools
- 2 colleges & universities
- 1 hospitals & clinics
- 1 pharmacies
- 3 supermarkets
- 20 restaurants & cafés
- 12 parks
- 13 playgrounds
- 1 gyms & sports centres
- 2 libraries
- 1 post offices
- 9 places of worship
- 1 banks
- 8 gas stations
- 1 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