
Carlinville
- County:
- Macoupin County
- County Seat:
- Yes
- Area (mi²):
- 3.369
- State:
- Illinois
Carlinville is a city located in Macoupin County, Illinois. Carlinville has a 2025 population of 5,427. It is also the county seat of Macoupin County. Carlinville is currently declining at a rate of -0.95% annually and its population has decreased by -4.56% since the most recent census, which recorded a population of 5,686 in 2020.
The average household income in Carlinville is $70,212 with a poverty rate of 25.22%. The median age in Carlinville is 41.5 years: 39.8 years for males, and 44.3 years for females.