Newington is a town in Hartford County, Connecticut, United States. The town is part of the Capitol Planning Region. Located 8 miles (13 km) south of downtown Hartford, Newington is an older, mainly residential suburb located in Greater Hartford. As of 2023, the population is 30,527. The Connecticut Department of Transportation has its headquarters in Newington.

Hartford County is a county located in the north central part of the U.S. state of Connecticut. According to the 2020 census, the population was 899,498, making it the second-most populous county in Connecticut. Hartford County contains the city of Hartford, the state capital of Connecticut and the county's most populous city, with 121,054 residents at the 2020 census. Hartford County is included in the Hartford-East Hartford-Middletown metropolitan statistical area.