Lexa is a town located in the U.S. state of Arkansas. It is within Phillips County. It has a total land area of 0.38 square miles at 34°35′51″N 90°45′2″W. The elevation is 213 feet above sea level. As of the 2010 census data, it had a total population of 286. The population density was 644.91/sq mi. Estimated per capita income in 2015 was $18,247. The average travel time is 14 minutes. It is using Zip code 72355.