
Lamar
- County:
- Prowers County
- County Seat:
- Yes
- Area (mi²):
- 5.215
- State:
- Colorado
Lamar is a city located in Prowers County, Colorado. Lamar has a 2025 population of 7,409. It is also the county seat of .Lamar is currently declining at a rate of -0.78% annually and its population has decreased by -3.77% since the most recent census, which recorded a population of 7,699 in 2020.
The average household income in Lamar is $91,143 with a poverty rate of 19.99%. The median age in Lamar is 33.1 years: 31.1 years for males, and 34.3 years for females.