Irondequoit (/ɪˈrɒndəkɔɪt/) is a town (and census-designated place) in Monroe County, New York, United States.

During the last part of the 19th century, the north edge of the town was developed as a tourist and vacation area for the City of Rochester residents, and was once known as the "Coney Island of Western New York."

After World War II, Irondequoit experienced significant population growth, with returning veterans looking for housing.

Irondequoit became the first suburb in Monroe County to see substantial migration of residents from the City of Rochester, with the population growing from 23,376 in 1940 to 55,337 in 1960, a remarkable 136% increase.

The Urban Suburban Interdistrict Transfer Program, which still operates today, was begun with 25 first graders from the inner city of Rochester who embarked on their K-12 education in the West Irondequoit school district.

The program has continued to expand and now includes additional suburban districts that are part of the Rochester metropolitan area.

[4][better source needed] His appointed Committee Chair, Tamara Denysenko, identified Poltava, Ukraine as Irondequoit's chosen Sister City.

On the western border of Irondequoit, the city claims a thin strip that extends northward along the banks of the river from Seneca Park to Lake Ontario, at some points less than 50 yards (46 m) from the shore.

The result is that the City of Rochester claims the entire eastern shore of the Genesee, and the border of the Town of Irondequoit never reaches the river.

Similarly, the northern half of Durand-Eastman Park (including Durand Beach) lies within the city's borders, along with a narrow strip running along Culver Road for approximately 5 miles (8.0 km) southward to Norton Street.

Additionally, there are several schools with religious affiliations: Irondequoit is also the home of satellite campuses of two institutions of higher learning: