ZIP code · Laredo · Texas · United States

ZIP code 78040 — Laredo

ZIP code 78040 serves Laredo, Texas.

Postal code
78040
Single source Value from one source, not cross-checked.
City
Laredo
County
Webb FIPS 48479
State
Texas
Country
United States
Coordinates
27.5155, -99.4986 — precision estimated (postal-area centroid)
View on OpenStreetMap
Population
36,115 (ZCTA, ACS 5-year)
Population density
5,728 / sq mi
Land area
6.3 sq mi (16.3 km²) (ZCTA, ACS 5-year)
Median household income
$35,742
Per-capita income
$16,697
Median age
29.3
Households
11,438
Housing units
13,567
Median home value
$116,500
Median gross rent
$881 / month
Congressional district
TX-28 (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
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 101°F), coldest Jan (avg low 47°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F68748188939910010194877769
Avg low °F475158647175767772655648
Precip in0.90.81.61.52.82.52.11.73.61.81.01.1

NOAA 1991–2020 climate normals from the nearest station: LAREDO AFB (2.3 mi) · NOAA NCEI

Places in ZIP 78040

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