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Cumberland County, Maine

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This project is part of the State of Maine Portal.

Cumberland County, Maine is a county in the southwestern part of the state. As of the 2010 census, the population was 281,674, making it the most populous county in Maine. Its county seat is Portland. Cumberland County was founded in 1760 from a portion of York County, Massachusetts and named for William, Duke of Cumberland, a son of King George II.

Cumberland County has the deepest and second largest body of water in the state, Sebago Lake, which supplies tap water to most of the county. The county is the economic and industrial center of the state, having the resources of the Port of Portland, the Maine Mall, and having corporate headquarters of major companies such as Fairchild Semiconductor, IDEXX Laboratories, Unum, and TD Bank.

Cumberland County is part of the Portland–South Portland, ME Metropolitan Statistical Area.

Ethnic Groups

The racial makeup of the county in 2000 was 92.8% white, 2.4% black or African American, 2.0% Asian, 0.3% American Indian, 0.6% from other races, and 1.8% from two or more races. Those of Hispanic or Latino origin made up 1.8% of the population. In terms of ancestry, 22.7% were English, 21.1% were Irish, 9.0% were German, 8.4% were Italian, 6.0% were Scottish, 5.5% were French Canadian, and 4.4% were American.

In the 2000 Census, 94.4% spoke English and 2.1% French as their first language.

About the Project

Please use this project to add, research, document, and discuss your ancestors from Cumberland County. You can add profiles for:

  • People born in Cumberland County
  • People who lived in Cumberland County
  • People who died in Cumberland County

When you find helpful resources for research, please share them here so that others can benefit.

If you have projects related specifically to Cumberland County, like projects for towns or families centered within the county, you can also add those.

If you have any questions, suggestions, or general thoughts to share, please use the "Discussions" link at the upper right corner of the page.