Newcastle is a town located in Lincoln County, in the state of Maine (ME), United States. Nestled in the New England division of the North-east region, it covers an area of 29.0 square miles (75.0 km²) and sits at an elevation of 91 ft. With a population of approximately 1,748 residents, Newcastle offers a peaceful, rural atmosphere.
The town's population is composed of about 46.8% males and 53.2% females, and it has a population density of 60.28 people per square mile (23.27/km²). Newcastle lies at a latitude of 44.05 and a longitude of -69.54, operating in the UTC-5.
Locals reflect a blend of American ancestry, with roots primarily in United States (8.7%), followed by English (29.4%), German (11.9%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 04553.