Lowell, AR has a population of 8,322 and is the 4,565th largest city in the United States. The population density is 902 per sq mi which is 1527% higher than the Arkansas average and 896% higher than the national average. The median age in Lowell is 31 which is approximately 18% lower than the Arkansas average of 38. In Lowell, 65% of the population over 15 years of age are married, 82% speak English and 16% speak Spanish. 45% of Lowell residents were born in Arkansas, 39% were born out of state, 0% were born outside of the United States and 16% were foreign born.