Lamar County is a county in the West Central region of the U.S. state of Georgia. As of the 2020 census, the population was 18,500. The county seat is Barnesville.
History
The Georgia General Assembly proposed the constitutional amendment to create the county on August 17, 1920, and the citizens of the state voted in favor of the amendment on November 2, 1920.
Land from Pike County and Monroe County was then transferred to create Lamar County.
Lamar County was named after Confederate Democrat Lucius Quintus Cincinnatus Lamar II.
Geography
According to the U.S. Census Bureau, the county has a total area of , of which is land and (1.3%) is water. It is located in the Piedmont region of the state.
The western third of Lamar County, west of a line from Orchard Hill through Milner and Barnesville, is located in the Upper Flint River sub-basin of the ACF River Basin (Apalachicola-Chattahoochee-Flint River Basin). The eastern majority of the county is located in the Upper Ocmulgee River sub-basin of the Altamaha River basin.
Major highways
- 20px Interstate 75
- 20px U.S. Route 41
- 25px U.S. Route 341
- 20px State Route 7
- 20px State Route 18
- 20px State Route 36
- 20px State Route 109
- 20px State Route 401 (unsigned designation for I-75)
Adjacent counties
- Butts County (northeast)
- Monroe County (east)
- Upson County (southwest)
- Pike County (west)
- Spalding County (northwest)
Communities
Cities
- Barnesville (county seat)
- Milner
Towns
- Aldora
- Goggins