Arkansas City is a town located in the U.S. state of Arkansas. It is within Desha County nestled in the Delta Lowlands sub-region of the Arkansas Delta. It has a total land area of 0.5 square miles at 33°36′32″N 91°12′13″W. The elevation is 135 feet above sea level. Arkansas City's historic Commercial District is included on the National Register of Historic Places. As of the 2010 census data, it had a total population of 366. Estimated per capita income in 2013 was $18,633. It is using Zip code 71630.