ZIP code · Mcallen · Texas · United States

ZIP code 78504 — Mcallen

ZIP code 78504 serves Mcallen, Texas.

Postal code
78504
Single source Value from one source, not cross-checked.
City
Mcallen
County
Hidalgo FIPS 48215
State
Texas
Country
United States
Coordinates
26.2556, -98.2303 — precision precise (locality)
View on OpenStreetMap
Population
61,816 (ZCTA, ACS 5-year)
Population density
3,155 / sq mi
Land area
19.6 sq mi (50.8 km²) (ZCTA, ACS 5-year)
Median household income
$77,627
Per-capita income
$34,921
Median age
32.5
Households
19,571
Housing units
21,417
Median home value
$203,900
Median gross rent
$1,178 / month
Congressional districts
TX-15 (also 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
956
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.

Climate — monthly normals

Warmest month Aug (avg high 99°F), coldest Jan (avg low 49°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F717682879296989994898073
Avg low °F495359657176777773665751
Precip in0.70.61.01.41.43.01.61.43.82.01.10.6

NOAA 1991–2020 climate normals from the nearest station: MCALLEN (4.6 mi) · NOAA NCEI

Places in ZIP 78504

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