Bolton is a town in Chittenden County, Vermont, United States. The population was 1,301 at the time of the 2020 census. The town is home to Bolton Valley, a popular ski resort. The main road passing through the town is U.S. Route 2, which follows the north bank of the Winooski River. Interstate 89 also passes through the town, parallel to Route 2, but d…Bolton is a town in Chittenden County, Vermont, United States. The population was 1,301 at the time of the 2020 census. The town is home to Bolton Valley, a popular ski resort. The main road passing through the town is U.S. Route 2, which follows the north bank of the Winooski River. Interstate 89 also passes through the town, parallel to Route 2, but does not have an interchange there.