Guilford, Connecticut

Guilford, Connecticut
Guilford Green
Great Harbor causeway
Guilford Free Library
Motto: 
"Discover A Piece Of Connecticut History"
Interactive map of Guilford, Connecticut
Coordinates: 41°17′N 72°41′W / 41.283°N 72.683°W / 41.283; -72.683
Country United States
U.S. state Connecticut
CountyNew Haven
RegionSouth Central CT
SettledMay 19, 1639
EstablishedOctober 15, 1644
Named afterGuildford, Surrey
Government
 • TypeSelectman-town meeting
 • First selectmanMatthew T. Hoey III (D)
 • SelectmanLouis Federici (D)
 • SelectmanSandra Ruoff (D)
 • SelectmanCharles Havrda (R)
 • SelectmanSusan Renner (R)
Area
 • Total
49.7 sq mi (128.7 km2)
 • Land47.1 sq mi (121.9 km2)
 • Water2.7 sq mi (6.9 km2)
Elevation
56 ft (17 m)
Population
 (2020)
 • Total
22,073
 • Density469.0/sq mi (181.1/km2)
DemonymGuilfordite
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (Eastern)
ZIP Code
06437
Area codes203/475
FIPS code09-34950
GNIS feature ID0213438
Websitewww.guilfordct.gov

Guilford is a town in New Haven County, Connecticut, United States. It borders Madison, Branford, North Branford, and Durham. It is situated on I-95 and the Connecticut coast. The town is part of the South Central Connecticut Planning Region. The population was 22,264 at the July 2024 estimate made by the United States Census Bureau.