Penobscot County, Maine

Penobscot County is a county in Maine with an estimated population of 155,312 in 2023. 3 cities, towns and Census places in it are indexed here.

Largest places in Penobscot County

About Penobscot County

Penobscot County is one of the counties of Maine. County governments in Maine handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.