ZIP code · Big Sandy · Texas · United States

ZIP code 75797 — Big Sandy

ZIP code 75797 serves Big Sandy, Texas.

Postal code: 75797
Single source Value from one source, not cross-checked.
City: Big Sandy
County: Upshur
State: Texas
Country: United States
Coordinates: 32.5765, -95.1313 — precision precise (locality)
View on OpenStreetMap
USDA hardiness zone: 8b (15 to 20 °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: 430, 903
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 75797 with another ZIP · ZIPs within 25 miles · distance from 75797

Climate — monthly normals

Warmest month Jul (avg high 93°F), coldest Jan (avg low 33°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	56	60	67	75	82	89	93	92	87	77	66	57
Avg low °F	33	35	43	49	59	67	71	69	62	51	41	34
Precip in	3.8	4.1	4.2	4.7	4.5	4.1	3.0	3.0	3.7	4.6	3.8	4.5

NOAA 1991–2020 climate normals from the nearest station: GILMER 4 WNW (12.7 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