Together, the towns of Freetown and Lakeville cover 72 square miles. Only 14 percent of this area is located within the Buzzards Bay watershed, where the Acushnet River begins in Freetown. But a significant portion of these two towns is located within the Assawompsett Ponds watershed. These ponds were historically connected to Buzzards Bay by the Mattapoisett River, and today they provide drinking water to the city of New Bedford.

Freetown and Lakeville border Dartmouth, New Bedford, Acushnet, and Rochester to the south and Middleborough to the west. As of the 2010 Census, Freetown was home to 8,870 residents and Lakeville was home to 10,602 residents.