Guilford is a town located in New Haven County, in the state of Connecticut (CT), United States. Nestled in the New England division of the North-east region, it covers an area of 47.1 square miles (122.0 km²) and sits at an elevation of 20 ft. With a population of approximately 21,398 residents, Guilford offers a vibrant community life.
The town's population is composed of about 48.13% males and 51.87% females, and it has a population density of 454.31 people per square mile (175.41/km²). Guilford lies at a latitude of 41.31 and a longitude of -72.7, operating in the UTC-5.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (16.9%), German (16.3%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 06437.