Colchester is located in Chittenden County in the northwestern part of Vermont along Lake Champlain. It has a population of approximately 17,400 people and a median household income of approximately $67,000. Neighboring towns include Cambridge, Milton, and Westford. Colchester has 2 schools for children kindergarten through 2nd grade and one school for children from 3rd grade through 5th grade. It has one middle school and one high school. Browse available Colchester VT real estate below. You may also be interested in viewing current listings for Colchester condos or Colchester homes.