Oppelo is a city located in the U.S. state of Arkansas. It is within Conway County about 3 miles of the Arkansas River to the south. It has a total area of 2.48 square miles at 35°6′9″N 92°46′6″W. The elevation is 338 feet above sea level. As of the 2010 census data, it had a total population of 781. The population density was 313.01/sq mi . Estimated per capita income in 2015 was $19,562. It has Zip code 72110.