Clarendon is a city in Monroe County, Arkansas, United States. The population was 1,960 at the 2000 census. The city is the county seat of Monroe County.
Clarendon is located at 34°41′39″N 91°18′30″W / 34.69417°N 91.30833°W / 34.69417; -91.30833 (34.694035, -91.308411).
According to the United States Census Bureau, the city has a total area of 2.0 square miles (5.1 km²), of which, 1.8 square miles (4.7 km²) of it is land and 0.1 square miles (0.3 km²) of it (6.15%) is water.