About This Place
Lamar is a city in Johnson County, Arkansas, United States. The population was 1,415 at the 2000 census.
Lamar is located at 35°26′26″N 93°23′34″W / 35.44056°N 93.39278°W / 35.44056; -93.39278 (35.440546, -93.392764).
According to the United States Census Bureau, the city has a total area of 4.4 square miles (11.3 km²), of which, 4.4 square miles (11.3 km²) of it is land and 0.23% is water.