Lewisville is a city in Lafayette County, Arkansas, United States. The population was 1,285 at the 2000 census. The city is the county seat of Lafayette County.
Lewisville is located at 33°21′38″N 93°34′46″W / 33.36056°N 93.57944°W / 33.36056; -93.57944 (33.360636, -93.579317).
According to the United States Census Bureau, the city has a total area of 2.2 square miles (5.7 km²), all of it land.