ZIP code · San Antonio · Texas · United States

ZIP code 78298 — San Antonio

ZIP code 78298 serves San Antonio, Texas.

Postal code: 78298
Single source Value from one source, not cross-checked.
City: San Antonio
County: Bexar
State: Texas
Country: United States
Coordinates: 29.4375, -98.4616 — precision precise (locality)
View on OpenStreetMap
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 codes: 210, 726, 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.

Tools: compare 78298 with another ZIP · ZIPs within 25 miles · distance from 78298

Climate — monthly normals

Warmest month Aug (avg high 95°F), coldest Jan (avg low 40°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	63	68	74	80	86	92	94	95	90	82	71	64
Avg low °F	40	44	51	57	66	72	74	74	69	59	49	41
Precip in	2.2	1.9	2.4	2.3	4.4	3.5	2.4	2.4	3.9	3.9	2.5	2.1

NOAA 1991–2020 climate normals from the nearest station: SAN ANTONIO INCARNATE WORD (2.4 mi) · NOAA NCEI

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 · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page