ZIP code · Edinburg · Texas · United States
ZIP code 78540 — Edinburg
ZIP code 78540 serves Edinburg, Texas.
- Postal code
- 78540Single source Value from one source, not cross-checked.
- City
- Edinburg
- County
- Hidalgo FIPS 48215
- State
- Texas
- Country
- United States
- Coordinates
- 26.3017, -98.1633 — precision precise (locality)
View on OpenStreetMap - Population
- 0 (ZCTA, ACS 5-year)
- Population density
- 0 / sq mi
- Land area
- 7.8 sq mi (20.1 km²) (ZCTA, ACS 5-year)
- Households
- 0
- Housing units
- 7
- Congressional district
- TX-15 (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 78540 with another ZIP · ZIPs within 25 miles · distance from 78540
Map of ZIP code 78540
Climate — monthly normals
Warmest month Aug (avg high 98°F), coldest Jan (avg low 49°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 70 | 75 | 80 | 86 | 92 | 95 | 97 | 98 | 93 | 89 | 79 | 73 |
| Avg low °F | 49 | 54 | 58 | 65 | 71 | 75 | 77 | 77 | 73 | 66 | 58 | 51 |
| Precip in | 1.3 | 0.9 | 1.4 | 1.4 | 2.6 | 2.8 | 2.5 | 1.8 | 4.3 | 2.5 | 1.3 | 1.1 |
NOAA 1991–2020 climate normals from the nearest station: EDINBURG (0.4 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