ZIP code · Mercedes · Texas · United States
ZIP code 78570 — Mercedes
ZIP code 78570 serves Mercedes, Texas.
- Postal code
- 78570Single source Value from one source, not cross-checked.
- City
- Mercedes
- County
- Hidalgo FIPS 48215
- State
- Texas
- Country
- United States
- Coordinates
- 26.1513, -97.9185 — precision precise (locality)
View on OpenStreetMap - Population
- 33,596 (ZCTA, ACS 5-year)
- Population density
- 447 / sq mi
- Land area
- 75.2 sq mi (194.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $39,890
- Per-capita income
- $16,142
- Median age
- 27.5
- Households
- 8,973
- Housing units
- 10,701
- Median home value
- $83,400
- Median gross rent
- $686 / month
- 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 78570 with another ZIP · ZIPs within 25 miles · distance from 78570
Map of ZIP code 78570
Climate — monthly normals
Warmest month Aug (avg high 97°F), coldest Jan (avg low 50°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 71 | 75 | 81 | 86 | 90 | 95 | 96 | 97 | 92 | 87 | 80 | 72 |
| Avg low °F | 50 | 54 | 60 | 65 | 72 | 76 | 77 | 76 | 73 | 66 | 58 | 52 |
| Precip in | 1.0 | 0.9 | 1.4 | 1.5 | 2.6 | 2.8 | 2.2 | 1.9 | 5.6 | 2.8 | 1.6 | 1.3 |
NOAA 1991–2020 climate normals from the nearest station: WESLACO (3.7 mi) · NOAA NCEI
Places in ZIP 78570
- 19 schools
- 1 supermarkets
- 5 restaurants & cafés
- 4 parks
- 9 playgrounds
- 1 gyms & sports centres
- 1 libraries
- 7 places of worship
- 4 gas stations
- 1 EV charging stations
- 3 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