Harwich is a cdp located in Barnstable County, in the state of Massachusetts (MA), United States. Nestled in the New England division of the North-east region, it covers an area of 8.0 square miles (21.0 km²) and sits at an elevation of 69 ft. With a population of approximately 4,744 residents, Harwich offers a peaceful, rural atmosphere.
The town's population is composed of about 47.91% males and 52.09% females, and it has a population density of 590.05 people per square mile (227.82/km²). Harwich lies at a latitude of 41.71 and a longitude of -70.03, operating in the UTC-5.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (25.6%), German (10.8%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 02645.