South Barre, VT has a population of 1,380 and is the 13,177th largest city in the United States. The population density is 704 per sq mi which is 982% higher than the Vermont average and 677% higher than the national average. The median age in South Barre is 42 which is approximately 2% lower than the Vermont average of 43. In South Barre, 61% of the population over 15 years of age are married, 95% speak English and 0% speak Spanish. 69% of South Barre residents were born in Vermont, 29% were born out of state, 0% were born outside of the United States and 2% were foreign born.