Waldenburg is a town located in the U.S. state of Arkansas. It is within Poinsett County part of the Jonesboro, Arkansas Metropolitan Statistical Area. The elevation is 240 feet above sea level. As of the 2010 census data, it had a total population of 61. The population density was 440.30/sq mi. Estimated per capita income in 2016 was $31,154. It has Zip code 72479.