Mountain Home, AR has a population of 12,312 and is the 3,346th largest city in the United States. The population density is 1,040 per sq mi which is 1775% higher than the Arkansas average and 1048% higher than the national average. The median age in Mountain Home is 50 which is approximately 33% higher than the Arkansas average of 38. In Mountain Home, 64% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 37% of Mountain Home residents were born in Arkansas, 59% were born out of state, 0% were born outside of the United States and 3% were foreign born.