La Grange
- County:
- Fayette County
- County Seat:
- Yes
- Area (mi²):
- 4.136
- State:
- Texas
La Grange is a city located in Fayette County, Texas. La Grange has a 2026 population of 4,504. It is also the county seat of Fayette County. La Grange is currently declining at a rate of -0.2% annually but its population has increased by 2.57% since the most recent census, which recorded a population of 4,391 in 2020.