Lake Jackson
- County:
- Brazoria County
- County Seat:
- No
- Area (mi²):
- 19.735
- State:
- Texas
Lake Jackson is a city located in Brazoria County, Texas. Lake Jackson has a 2026 population of 28,158. Lake Jackson is currently growing at a rate of 0.83% annually and its population has increased by 0.04% since the most recent census, which recorded a population of 28,148 in 2020.