ZIP code · Sullivan City · Texas · United States
ZIP code 78595 — Sullivan City
ZIP code 78595 serves Sullivan City, Texas.
- Postal code
- 78595Single source Value from one source, not cross-checked.
- City
- Sullivan City
- County
- Hidalgo FIPS 48215
- State
- Texas
- Country
- United States
- Coordinates
- 26.2720, -98.5627 — precision precise (locality)
View on OpenStreetMap - Population
- 5,958 (ZCTA, ACS 5-year)
- Population density
- 195 / sq mi
- Land area
- 30.5 sq mi (79.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $48,304
- Per-capita income
- $17,113
- Median age
- 33.3
- Households
- 1,763
- Housing units
- 1,952
- Median home value
- $86,400
- Median gross rent
- $615 / month
- Congressional districts
- TX-15 (also TX-28) (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 78595 with another ZIP · ZIPs within 25 miles · distance from 78595
Map of ZIP code 78595
Climate — monthly normals
Warmest month Aug (avg high 97°F), coldest Jan (avg low 47°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 69 | 74 | 79 | 85 | 90 | 95 | 95 | 97 | 92 | 87 | 78 | 71 |
| Avg low °F | 47 | 51 | 57 | 63 | 70 | 74 | 75 | 75 | 71 | 64 | 55 | 48 |
| Precip in | 0.8 | 0.9 | 1.4 | 1.7 | 1.9 | 1.9 | 2.2 | 1.2 | 3.5 | 2.2 | 1.1 | 1.4 |
NOAA 1991–2020 climate normals from the nearest station: LA JOYA (15.2 mi) · NOAA NCEI
Places in ZIP 78595
- 2 schools
- 1 supermarkets
- 1 restaurants & cafés
- 1 parks
- 1 playgrounds
- 3 places of worship
- 2 gas 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