
Collinsville
- County:
- Lauderdale County
- County Seat:
- No
- Area (mi²):
- 14.249
- State:
- Mississippi
Collinsville is a CDP located in Lauderdale County, Mississippi. Collinsville has a 2025 population of 1,742. Collinsville is currently declining at a rate of -0.8% annually but its population has increased by 18.75% since the most recent census, which recorded a population of 1,467 in 2020.
The average household income in Collinsville is $82,979 with a poverty rate of 14.17%. The median age in Collinsville is 52.9 years: 54 years for males, and 51.5 years for females.