Cumberland County is a county in the state of Maine. Its county seat is the city of Portland, Maine. It was founded in 1760 from a portion of Yorkshire (now called York) County. As of the 2010 census, Cumberland County's population was 281,674. The population makes it the most populous of all 16 Maine counties. It is home to the state's deepest and second largest lake, Sebago Lake.
Androscoggin County, Maine: North, Oxford County, Maine: Northwest, Sagadahoc County, Maine: Northeast, York County, Maine: Southwest
Cumberland County is home to a few major highways in the state. Here they are:
Interstate 95: Runs from the border of Canada in Houlton, Maine down to Florida.
US Route 302: Goes through the large North Windham shopping district.
Maine State Route 9
Maine State Route 77: Goes across the Casco Bay Bridge on the city line of Portland and South Portland.
US Route 202: Goes through the town of Gorham and many others