According to the United States Census Bureau, the town has a total area of 28.2 square miles (73.1 km²), of which, 25.7 square miles (66.7 km²) of it is land and 2.5 square miles (6.4 km²) of it (8.76%) is water. Oakland is drained by four major waterways: McGrath Pond, Salmon Lake, East Pond and Messalonskee Lake and Stream.

The town is crossed by Interstate 95, and state routes 11, 23, 41 and 137. It borders the towns of Belgrade to the southwest, Smithfield to the northwest, Fairfield to the north, Waterville to the southeast, and Sidney to the south.

Oakland Area Code is 207

• Maine State Museum
• Lake Saint George State Park
• Messalonskee Lake
• Edward Arlington Robinson House

• Town of Oakland, ME -P.O. Box 187, Oakland, Me 04963
  Telephone: 207-465-7357 Fax: 207-465-9118
• Oakland Public Library - 18 Church Street, Oakland, Maine 04963
  Phone: 207-465-7533