Winslow, Maine, in Kennebec county, is 68 miles NE of Portland, Maine and 167 miles NE of Boston, Massachusetts.
According to the United States Census Bureau, the town has a total area of 38.7 square miles (100.3 km2), of which, 36.8 square miles (95.4 km2) of it is land and 1.9 square miles (4.8 km2) of it (4.83%) is water. Winslow is located at the confluence of the Sebasticook River with the Kennebec River.
The town is crossed by U.S. Route 201 and State Routes 11, 32, 100 and 137. It borders the towns of Benton to the north, Albion to the east, China to the southeast, Vassalboro to the south, and (across the Kennebec River) Waterville to the west.
Winslow Area Code is 207