Lewisville is a town located in the U.S. state of Arkansas. It is within and the county seat of Lafayette County. It has a total area of 2.21 square miles at 33°21′38″N 93°34′46″W. The elevation is 292 feet above sea level. As of the 2010 census data, it had a total population of 1,280. The population density was 531.55/sq mi. Estimated per capita income in 2015 was $21,878. It is using Zip code 71845.