Montpelier, VT has a population of 7,662 and is the 4,850th largest city in the United States. The population density is 762 per sq mi which is 1071% higher than the Vermont average and 741% higher than the national average. The median age in Montpelier is 43 which is approximately 1% higher than the Vermont average of 43. In Montpelier, 52% of the population over 15 years of age are married, 94% speak English and 1% speak Spanish. 42% of Montpelier residents were born in Vermont, 51% were born out of state, 1% were born outside of the United States and 5% were foreign born.