Woodbridge is a town in New Haven County, Connecticut, United States. 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.