St. Albans is the only city in and the seat of Franklin County, Vermont, United States. At the 2020 census, the city population was 6,877. St. Albans City is completely surrounded by St. Albans Town, which is a separate municipality. The city is located in Northwestern Vermont, 29 miles north of Burlington, Vermont's most populous city, which is located in Chittenden County.

Franklin County is a county located in the U.S. state of Vermont. As of the 2020 census, the population was 49,946. Its county seat is the city of St. Albans. It borders the Canadian province of Quebec. The county was created in 1792 and organized in 1796. Franklin County is part of the Burlington metropolitan area.