Huntsville is a city located in the U.S. state of Arkansas. It is within and the county seat of Madison County included in the Fayetteville–Springdale–Rogers, AR-MO Metropolitan Statistical Area. It has a total area of 3.86 square miles at 36°5′23″N 93°44′6″W. The elevation is 1,519 feet above sea level. As of the 2010 census data, it had a total population of 2,346. The population density was 628.87/sq mi. Estimated per capita income in 2015 was $15,939. The average travel time is 31 minutes. It is using Zip code 72740.