
Lamar
- County:
- Clinton County
- County Seat:
- No
- Area (mi²):
- 1.371
- State:
- Pennsylvania
Lamar is a CDP located in Clinton County, Pennsylvania. Lamar has a 2025 population of 661. Lamar is currently growing at a rate of 1.07% annually and its population has increased by 4.09% since the most recent census, which recorded a population of 635 in 2020.
The average household income in Lamar is $75,824 with a poverty rate of 8.48%. The median age in Lamar is 43 years: 43.5 years for males, and 42.4 years for females.