South Lineville, MO has a population of 25 and is the 28,697th largest city in the United States. The population density is 458 per sq mi which is 430% higher than the Missouri average and 406% higher than the national average. The median age in South Lineville is 37 which is approximately 2% lower than the Missouri average of 38. In South Lineville, 82% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 44% of South Lineville residents were born in Missouri, 56% were born out of state, 0% were born outside of the United States and 0% were foreign born.