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.
 Woodbridge was originally called "Amity", having been carved out of land originally belonging to New Haven and Milford as an independent parish in 1739. In 1742, the Rev. Benjamin Woodbridge was ordained in Amity, and it is after him that the modern town was named. Woodbridge was incorporated in 1784.
 In 1661, the town was the location of one of the hideouts of the "Regicides"—three of the judges who signed the death warrant for King Charles I of England. The ruins of their hideout can be found on the nearby West Rock ridge, which runs along the town's eastern border.
 Thomas Darling (1720–1789), a tutor at Yale College and later an entrepreneur in New Haven, moved to town in 1774. His home is now the Darling House Museum, operated by the Amity & Woodbridge Historical Society. The original farms of Woodbridge were located in the area of the West River Valley known as The Flats.
 In the modern era, Woodbridge has undergone significant suburbanization.
 Following the onset 2020 George Floyd protests, Woodbridge and other affluent towns in Connecticut have faced criticism certain civic organizations alleging the practice of exclusionary zoning. In early 2021, local housing advocacy group Open Communities Alliance called upon Woodbridge to amend its zoning codes to allow for more housing developments, and enable more low-income and minority residents to live in the town. The group cited that just 0.2% of Woodbridge’s land area permits two-family dwellings. In response to efforts by the group, Woodbridge's Town Plan and Zoning Commission approved a revision in June 2021 to the town's zoning rules to allow for multi-family homes and ADUs on 2% the town's land. The Open Communities Alliance voiced disappointment regarding the scale of the change, and filed a lawsuit alleging Woodbridge was in violation of Connecticut's Zoning Enabling Act and Fair Housing Act in August 2022 in a case which has attracted statewide attention.
 Woodbridge is governed by a 6-member Board of Selectmen.
 Woodbridge's current First Selectwoman is Beth Heller, whose term expires in June 2023. Heller has served as the town's First Selectwoman since May 2017, and has been re-elected in May 2019 and May 2021. Heller previously served as interim First Selectwoman from April to June 2013, following the death of former First Selectman Ed Sheehy.
 The town's previous First Selectwoman was Democrat Ellen Scalettar, who was first elected in 2013, and was re-elected in 2015. Scalettar did not seek a third term in 2017.
 Prior to Scalettar, Democrat Ed Sheehy served as the town's First Selectman. He became First Selectman in April 2006. Sheehy served on the Board of Selectmen for 27 years as a regular selectman.  The Board of Selectmen elected Sheehy First Selectman by a 3 to 2 vote, along party lines, to replace Amey Marella (Republican), who stepped down to accept a job as Deputy Commissioner of the Connecticut Department of Environmental Protection.  Before becoming First Selectwoman in 2001, Marella was an attorney with the United States Environmental Protection Agency. Edward Sheehy was reelected in May 2009 to another two-year term. On April 22, 2013, Sheehy died suddenly at the age of 73 while still holding the First Selectman's office. He was actively seeking re-election in May. He was laid to rest on April 27, 2013.
 Beecher Road School is the town's pre Kindergarten-Grade 6 school.
 As part of the Amity school system, Woodbridge shares a middle school with the town of Bethany, which is located north of Woodbridge.
 Woodbridge also shares the Amity Regional High School with the neighboring towns of Bethany and Orange. The high school is located in Woodbridge's town center area.
 Woodbridge is home to Ezra Academy, a regional Jewish day school whose students reside in 21 towns throughout New Haven and Fairfield counties.
 According to the United States Census Bureau, the town has a total area of 19.2 square miles (50 km2), of which 18.8 square miles (49 km2) is land and 0.4 square miles (1.0 km2) is water. The total area is 2.03% water.
 Woodbridge is informally divided into two distinct parts: central Woodbridge, which occupies the western hilly side of town; and the area known as The Flats, which occupies the eastern slice of town, bordering West Rock and the New Haven neighborhood of Westville.
 Neighboring towns are Bethany to the north, Hamden to the east, New Haven, and West Haven to the southeast, Orange to the south, and Derby, Ansonia, and Seymour to the west.
 Woodbridge is home to several organizations that protect undeveloped land and historic sites, including the Woodbridge Land Trust and the Woodbridge Park Association. The town has an extensive system of preserved hiking trails open to the public, notably the 93-acre (380,000 m2) Alice Newton Street Memorial Park and the 22-acre (89,000 m2) Wepawaug Falls area. Some of the land has been donated by residents.
 As of the census of 2020, there were 9,087 people, 2,897 households, and 2,353 families in the town. The population density was 477.0 inhabitants per square mile (184.2/km2).  There were 3,476 housing units at an average density of 169.3 per square mile (65.4/km2).  The racial makeup of the town was 74.5% White, 3.07% African American, 0.17% Native American, 13.3% Asian, 0.033% Pacific Islander, 1.91% from other races, and 6.99% from two or more races.  6.02% of the population were Hispanic or Latino of any race.
 Out of 2,897 households, there were 2,353 families in which 70% were married couple family households, 13.9% female householder with no spouse present, and 10.5% male householder with no spouse present. 36% of households have one or more person under the age of 18. 61.1% of the population is actively married. 13.7% of all households were made up of individuals, and 9.1% had someone living alone who was 65 years of age or older.  The average family size was 3.31. 5.8% of the population was under the age of 5, 23.2% of the population was under the age of 18, 76.8% of the population was 18 years and over, and 24.8% were 65 years of age or older.  The median age was 49.3 years. For every 100 females, there were 100.7 males.
 The median income for a household in the town was $157,610, and the median income for a family was $166,546. As of 2010, males had a median income of $105,632 versus $70,286 for females. The per capita income for the town was $69,179. 3.5% of the population and 1.4% of families were below the poverty line. 3.3% of those under the age of 18 and 4% of those 65 and older were living below the poverty line.
 *Consolidated borough and town