
Collinsville
- County:
- Grayson County
- County Seat:
- No
- Area (mi²):
- 0.988
- State:
- Texas
Collinsville is a town located in Grayson County, Texas. Collinsville has a 2025 population of 2,122. Collinsville is currently growing at a rate of 2.41% annually and its population has increased by 13.23% since the most recent census, which recorded a population of 1,874 in 2020.
The average household income in Collinsville is $87,993 with a poverty rate of 13.69%. The median age in Collinsville is 37.7 years: 36.4 years for males, and 39.7 years for females.