Unionville, Orange County, New York

The village is within the town of Minisink, southeast of Port Jervis, and is part of the Poughkeepsie-Newburgh-Middletown, Orange County, New York metropolitan statistical area as well as the larger New York City-Newark, New Jersey-Bridgeport, Connecticut and New York-New Jersey-Connecticut-Pennsylvania combined statistical area.

[4] Once an important economic zone in the area, its decline followed the changes in transportation which favored other locations: the Middletown and Unionville Railroad shuttled agricultural products (especially milk) as well as high school students in the first half of the 20th century.

By World War II, however, improved roads and a high school built far away from the train tracks led to the end of these services; passenger service on the line ended in 1968.

[5] According to the United States Census Bureau, the village has a total area of 0.2 square mile (0.6 km2), all land.

The Appalachian Trail runs just south of the village along the New York/New Jersey state line.