Lincolnton, NC has a population of 10,593 and is the 3,775th largest city in the United States. The population density is 1,229 per sq mi which is 579% higher than the North Carolina average and 1257% higher than the national average. The median age in Lincolnton is 38 which is approximately 2% lower than the North Carolina average of 38. In Lincolnton, 56% of the population over 15 years of age are married, 80% speak English and 19% speak Spanish. 63% of Lincolnton residents were born in North Carolina, 24% were born out of state, 1% were born outside of the United States and 12% were foreign born.