Mountainburg, AR has a population of 614 and is the 18,305th largest city in the United States. The population density is 405 per sq mi which is 630% higher than the Arkansas average and 347% higher than the national average. The median age in Mountainburg is 37 which is approximately 3% lower than the Arkansas average of 38. In Mountainburg, 62% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 62% of Mountainburg residents were born in Arkansas, 38% were born out of state, 0% were born outside of the United States and 0% were foreign born.
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The population density in Mountainburg is 630% higher than Arkansas.
The median age in Mountainburg is 3% lower than Arkansas.
In Mountainburg 84.04% of the population is White.
In Mountainburg 0.00% of the population is Black or African American.