Texarkana is a city located in the U.S. state of Arkansas. It is the county seat of Miller County and the twelfth-largest city in Arkansas. Texarkana has a total area of 41.81 square miles at 33°25′59″N 94°1′14″W. The elevation is 240 feet above sea level. As of the 2010 census data, it had a total population of 361. The population density was 41.81 sq mi. Estimated per capita income in 2016 was $22,095. Recent job growth is positively increased by 3.47 percent. The average travel time is 19 minutes. It has Zip code 71854.