Bergen is a town in Genesee County, New York, United States.

The Bergen area was opened up in 1801 when a road was hacked through the thick "Northwoods" region from LeRoy to Lake Ontario.

A colony of 60 families from Connecticut settled the area along present-day Route 19 from Fort Hill (near Parmalee Road) to Black Creek between 1805 and 1810.

The first frame house in the town was erected by Dr. Levi Ward, the pioneer physician.

It was also called "Cork", after the Irish who settled there during and after the building of the railroad, and "Lower Bergen".

This area, along with the surrounding residences, was incorporated in on March 5, 1877, as the village of Bergen.

The village of Bergen is located near the center of the eastern boundary line, on the New York Central and Hudson River Railroad.

The Village Board passed an ordinance requiring that all structures in this area should be built of brick or stone or wrought iron.

The west side of the district south of the railroad is on the National Register of Historic Places due to its 1880 wrought-iron store fronts, transom windows and probably, also, because of the famous family who founded "Wardville".

When glaciers of the fourth ice age retreated from the northeast corner of New York State 125,000 years ago, they left behind 2,000 acres (8.1 km2) of forested wetlands now known as the Bergen Swamp.

The three-mile (5 km) long wildlife area is home to dozens of species of unusual birds, reptiles and rare flowers that thrive in an undisturbed, natural environment.

Bergen Swamp, a glacial feature now kept as a wildlife preserve, is home to a small endangered rattlesnake, the Eastern Massasauga, as well as a large diversity of other species.