Castine is a town located in Hancock 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 7.8 square miles (20.0 km²) and sits at an elevation of 100 ft. With a population of approximately 1,343 residents, Castine offers a peaceful, rural atmosphere.
The town's population is composed of about 65.08% males and 34.92% females, and it has a population density of 172.18 people per square mile (66.48/km²). Castine lies at a latitude of 44.41 and a longitude of -68.81, operating in the UTC-5.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (19.4%), German (12.4%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 04421.