ZIP Code 78674 – Weir, TX
Weir, Texas · Williamson County · Central time
| ZIP code | 78674 |
|---|---|
| City | Weir |
| State | Texas |
| County | Williamson County |
| Population | 108 |
| Time zone | Central · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 0.36 sq mi |
| Center (lat, long) | 30.6706, -97.5985 |
Area codes in this area
These are the area codes that most often serve ZIP 78674 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 78674
ZIP code 78674 is assigned to Weir, Texas. It lies in Williamson County. Its Census area covers about 0.36 square miles of land. The closest neighboring ZIP is 78680 (Round Rock), about 1 miles away.
Every address in 78674 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources