North Troy, VT has a population of 649 and is the 17,925th largest city in the United States. The population density is 347 per sq mi which is 433% higher than the Vermont average and 283% higher than the national average. The median age in North Troy is 33 which is approximately 23% lower than the Vermont average of 43. In North Troy, 54% of the population over 15 years of age are married, 94% speak English and 0% speak Spanish. 80% of North Troy residents were born in Vermont, 17% were born out of state, 1% were born outside of the United States and 2% were foreign born.