
Weir
- County:
- Williamson County
- County Seat:
- No
- Area (mi²):
- 1.821
- State:
- Texas
Weir is a city located in Williamson County, Texas. Weir has a 2025 population of 737. Weir is currently growing at a rate of 0.96% annually and its population has increased by 4.69% since the most recent census, which recorded a population of 704 in 2020.
The average household income in Weir is $84,325 with a poverty rate of 11.04%. The median age in Weir is 37.8 years: 37.2 years for males, and 42 years for females.