Arnold Line, MS has a population of 2,349 and is the 10,158th largest city in the United States. The population density is 1,414 per sq mi which is 2195% higher than the Mississippi average and 1461% higher than the national average. The median age in Arnold Line is 33 which is approximately 9% lower than the Mississippi average of 37. In Arnold Line, 52% of the population over 15 years of age are married, 94% speak English and 0% speak Spanish. 69% of Arnold Line residents were born in Mississippi, 26% were born out of state, 0% were born outside of the United States and 5% were foreign born.