Deer Park
- County:
- Harris County
- County Seat:
- No
- Area (mi²):
- 10.575
- State:
- Texas
Deer Park is a city located in Harris County, Texas. Deer Park has a 2026 population of 34,495. Deer Park is currently growing at a rate of 2.66% annually and its population has increased by 0.38% since the most recent census, which recorded a population of 34,364 in 2020.