Chestnut Hill is an affluent New England village located six miles (9.7 km) west of downtown Boston, Massachusetts, United States. Like all Massachusetts villages, Chestnut Hill is located within one or more incorporated municipal entities. It is located partially in Brookline in Norfolk County; partially in the Brighton neighborhood of the city of Boston in Suffolk County; partially in the West Roxbury neighborhood of the city of Boston in Suffolk County, and partially in the city of Newton in Middlesex County. Chestnut Hill's borders are defined by the 02467 ZIP Code. The name refers to several small hills that overlook the 135-acre (546,000 m2) Chestnut Hill Reservoir rather than one particular hill. Chestnut Hill is best known as the home of Boston College and as part of the Boston Mar