Weir is located in Williamson County. About 699 people live here (as of 2020). Between 2010 and 2020, the population grew from 450 to 699. The region is at 208 meters above sea level. The area covers about 4.2 square kilometers. There are about 37 streets in Weir. The postal codes are 78674. The dialing code is 512. Weir is city in Texas, United States.
| Area | 4.2 km² |
| Elevation | 208 m |
| Located in | Williamson County |
| Postal code | 78674 |
| Country | United States |
| Population | 699 |
| Official name | Weir |
| Bike path |
| Bike lane on roadway |
| Cycling allowed on bus lane |
| Bicycle street |
| Open to cyclists |
| Open to cyclists, good path |
| Cycling prohibited |
| Cobblestone |
| Long-distance bike route | (depending on scale) |
| Long-distance bike route |
| Long-distance hiking trail | (depending on scale) |
| Long-distance hiking trail |
| Pedestrians prohibited |