ZIP code · Kingsbury · Texas · United States

ZIP code 78638 — Kingsbury

ZIP code 78638 serves Kingsbury, Texas.

Postal code
78638
Single source Value from one source, not cross-checked.
City
Kingsbury
County
Guadalupe FIPS 48187
State
Texas
Country
United States
Coordinates
29.6726, -97.8306 — precision precise (locality)
View on OpenStreetMap
Population
2,064 (ZCTA, ACS 5-year)
Population density
17 / sq mi
Land area
118.1 sq mi (305.8 km²) (ZCTA, ACS 5-year)
Median household income
$82,760
Per-capita income
$40,168
Median age
43.9
Households
751
Housing units
875
Median home value
$301,500
Median gross rent
$1,252 / month
Congressional districts
TX-15 (also TX-27) (119th Congress)
USDA hardiness zone
9a (20 to 25 °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
830
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 98°F), coldest Jan (avg low 40°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F646874818894979892847365
Avg low °F404350576672747368584841
Precip in2.42.22.72.94.23.51.92.63.44.22.62.8

NOAA 1991–2020 climate normals from the nearest station: LULING (10.4 mi) · NOAA NCEI

Places in ZIP 78638

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