According to the U.S. Census Bureau, as of July 1, 2022, the population of Vermont is estimated to be 647,064. This is consistent with the 2020 U.S. Census, which reported a population of 643,503. Data USA reports a population of 642,000 people in Vermont as of 2020. Statista also reports a population of about 647,000 people in Vermont as of 2022. Therefore, the population of Vermont is estimated to be around 647,000 people as of 2023.