ZIP code · Hidalgo · Texas · United States
ZIP code 78557 — Hidalgo
ZIP code 78557 serves Hidalgo, Texas.
- Postal code
- 78557Single source Value from one source, not cross-checked.
- City
- Hidalgo
- County
- Hidalgo FIPS 48215
- State
- Texas
- Country
- United States
- Coordinates
- 26.1028, -98.2536 — precision precise (locality)
View on OpenStreetMap - Population
- 14,250 (ZCTA, ACS 5-year)
- Population density
- 859 / sq mi
- Land area
- 16.6 sq mi (43 km²) (ZCTA, ACS 5-year)
- Median household income
- $53,667
- Per-capita income
- $20,485
- Median age
- 31.5
- Households
- 3,886
- Housing units
- 4,141
- Median home value
- $156,400
- Median gross rent
- $849 / month
- Congressional district
- TX-15 (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
- 956 (from the nearest rate centre)Telephone 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 78557 with another ZIP · ZIPs within 25 miles · distance from 78557
Map of ZIP code 78557
Climate — monthly normals
Warmest month Aug (avg high 100°F), coldest Jan (avg low 53°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 73 | 77 | 83 | 88 | 93 | 97 | 99 | 100 | 94 | 89 | 80 | 74 |
| Avg low °F | 53 | 57 | 63 | 68 | 74 | 78 | 79 | 79 | 76 | 69 | 60 | 54 |
| Precip in | 0.8 | 0.7 | 1.4 | 1.4 | 2.0 | 3.0 | 2.0 | 1.8 | 4.6 | 2.1 | 1.2 | 1.1 |
NOAA 1991–2020 climate normals from the nearest station: MCALLEN MILLER INTL AP (5.6 mi) · NOAA NCEI
Places in ZIP 78557
- 10 schools
- 1 hospitals & clinics
- 1 supermarkets
- 5 restaurants & cafés
- 6 parks
- 17 playgrounds
- 1 gyms & sports centres
- 2 places of worship
- 1 gas 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