Lynn is a town located in the U.S. state of Arkansas. It is within Lawrence County. It has a total land area of 2.40 square miles at 36°0′24″N 91°15′8″W. The elevation is 358 feet above sea level. As of the 2010 census data, it had a total population of 288. The population density was 114.95/sq mi. Estimated per capita income in 2015 was $14,709. It is using Zip code 72440.