About Cumberland County
History
The County of Cumberland was incorporated in 1760 and named after William, Duke of Cumberland, son of King George II.
Municipalities
The county is comprised of 3 cities: Portland, South Portland, and Westbrook and 25 towns: Baldwin, Bridgton, Brunswick, Cape Elizabeth, Casco, Chebeague Island, Cumberland, Falmouth, Freeport, Frye Island, Gorham, Gray, Harpswell, Harrison, Long Island, Naples, New Gloucester, North Yarmouth, Pownal, Raymond, Scarborough, Sebago, Standish, Windham, and Yarmouth.The city of Portland is the county seat. For more information listing of Cumberland's cities and towns and their contact information.