ZIP code · Weir · Texas · United States
ZIP code 78674 — Weir
ZIP code 78674 serves Weir, Texas.
- Postal code
- 78674Single source Value from one source, not cross-checked.
- City
- Weir
- County
- Williamson FIPS 48491
- State
- Texas
- Country
- United States
- Coordinates
- 30.6747, -97.5929 — precision precise (locality)
View on OpenStreetMap - Population
- 195 (ZCTA, ACS 5-year)
- Population density
- 543 / sq mi
- Land area
- 0.4 sq mi (0.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $95,481
- Per-capita income
- $26,067
- Median age
- 37.6
- Households
- 53
- Housing units
- 62
- Median home value
- $43,000
- Congressional district
- TX-31 (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)
Tools: compare 78674 with another ZIP · ZIPs within 25 miles · distance from 78674
Map of ZIP code 78674
Climate — monthly normals
Warmest month Aug (avg high 97°F), coldest Jan (avg low 36°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 60 | 65 | 72 | 79 | 85 | 92 | 96 | 97 | 90 | 81 | 70 | 62 |
| Avg low °F | 36 | 40 | 47 | 54 | 63 | 70 | 72 | 72 | 67 | 57 | 46 | 38 |
| Precip in | 2.5 | 2.2 | 3.1 | 3.0 | 4.3 | 4.0 | 2.2 | 2.6 | 4.0 | 3.9 | 2.7 | 2.6 |
NOAA 1991–2020 climate normals from the nearest station: GEORGETOWN LAKE (7.6 mi) · NOAA NCEI
Places in ZIP 78674
- 1 gas stations
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