Penobscot County is a county located in the U.S. state of Maine. As of the most recent data available, the county has a population of approximately 144,919 people, with a population density of about 42.67 persons per square mile.
The county spans a total land area of 3,396.00 square miles (8,796.00 square kilometers). The administrative center and county seat is Bangor, which often serves as a hub for local governance and services. The largest city within the county by population is Bangor.
Geographically, Penobscot County experiences varied elevations, with its highest point at Stacyville 569 ft and its lowest point at Corinth 0 ft. The region operates in the UTC-5.