Elgin
- County:
- Bastrop County
- County Seat:
- No
- Area (mi²):
- 7.255
- State:
- Texas
Elgin is a city located in Bastrop County, Texas. Elgin has a 2026 population of 12,438. Elgin is currently growing at a rate of 1% annually and its population has increased by 26.89% since the most recent census, which recorded a population of 9,802 in 2020.