ZIP code · Hillsboro · Texas · United States

ZIP code 76645 — Hillsboro

ZIP code 76645 serves Hillsboro, Texas.

Postal code
76645
Single source Value from one source, not cross-checked.
City
Hillsboro
County
Hill FIPS 48217
State
Texas
Country
United States
Coordinates
32.0149, -97.1198 — precision precise (locality)
View on OpenStreetMap
Population
11,321 (ZCTA, ACS 5-year)
Population density
60 / sq mi
Land area
187.5 sq mi (485.6 km²) (ZCTA, ACS 5-year)
Median household income
$61,792
Per-capita income
$28,159
Median age
37.7
Households
3,987
Housing units
4,559
Median home value
$154,800
Median gross rent
$941 / month
Congressional district
TX-6 (119th Congress)
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 code
254
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 97°F), coldest Jan (avg low 34°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F596370778492969791806960
Avg low °F343845536270737366554436
Precip in2.72.83.63.74.53.61.62.23.15.02.73.1

NOAA 1991–2020 climate normals from the nearest station: HILLSBORO (0.6 mi) · NOAA NCEI

Places in ZIP 76645

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