Greenfield Park is a hamlet in Ulster County, New York, United States. The community is located along New York State Route 52 4.7 miles (7.6 km) west of Ellenville. Greenfield Park has a post office with ZIP code 12435, which opened on December 23, 1852.

Unplug yourself and have a laid-back vacation at , . This city offers countless opportunities to click pictures for your travel journal. Get in the character of the city, this city requires at least of 1 to 2 number of days of exploration.