Woodbridge is a town in New Haven County, Connecticut, United States. The town is part of the South Central Connecticut Planning Region. The population was 9,087 at the 2020 census. The town center is listed on the National Register of Historic Places as Woodbridge Green Historic District. Woodbridge is part of the Amity Regional School District #5, rated the #1 school district in New Haven County and the 10th best school district in CT by Niche in 2021. As of 2019 Woodbridge has the 7th highest median household income in CT.

New Haven County is a county in the south central part of the U.S. state of Connecticut. As of the 2020 census, the population was 864,835, making it the third-most populous county in Connecticut. Two of the state's top 5 largest cities, New Haven (3rd) and Waterbury (5th), are part of New Haven County.