De Peyster, NY is a town in St. Lawrence County in New York. It is located by the Oswegatchie River and Black Lake. Bird watching and fishing are popular outdoor activities in this area. There are campgrounds and fishing cabins available for rent near the river. The population is about 936 people. This is a nice quiet community. There are several antique shops in the area that hold an annual antique festival. People travel for miles to attend this festival. Two successful businesses in the area are Millwright Service Contractors and Mud Lake Stalls. The largest school in the area is their local De Peyster High School. The community supports their local High School football team each year. There are also several beautiful parks in the area that the locals like to picnic at, and have family gatherings. The best time to visit this town would be during the summer because of the fun outdoor activities it has to offer.