Unionville is a village in Orange County, New York, United States. The population was 612 at the 2010 census, making it by far the smallest village in Orange County and one of the smallest in New York State.
Unionville is located at 41°18′1″N 74°33′42″W / 41.30028°N 74.56167°W / 41.30028; -74.56167.
According to the United States Census Bureau, the village has a total area of 0.2 square miles (0.6 km²), all of it land.
The village is located on NY Route 284. The Appalachian Trail runs just south of the village along the New York/New Jersey state line. Unionville is adjacent to the Town of Wantage in New Jersey.
As of the census of 2000, there were 536 people, 197 households, and 140 families residing in the village. The population density was 2,140.2 people per square mile (827.8/km²). There were 210 housing units at an average density of 838.5 per square mile (324.3/km²). The racial makeup of the village was 95.34% White, 0.37% African American, 0.37% Pacific Islander, 2.24% from other races, and 1.68% from two or more races. Hispanic or Latino of any race were 8.21% of the population.
There were 197 households out of which 36.5% had children under the age of 18 living with them, 52.8% were married couples living together, 12.2% had a female householder with no husband present, and 28.9% were non-families. 22.3% of all households were made up of individuals and 5.6% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.16.
The population of the village was spread out, with 26.3% under the age of 18, 6.0% from 18 to 24, 31.7% from 25 to 44, 25.7% from 45 to 64, and 10.3% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 88.7 males. For every 100 females age 18 and over, there were 87.2 males.
The median income for a household in the village was $37,222, and the median income for a family was $41,000. Males had a median income of $31,250 versus $30,000 for females. The per capita income for the village was $16,753. About 7.0% of families and 8.4% of the population were below the poverty line, including 6.3% of those under age 18 and none of those age 65 or over.
Unionville New York neighborhoods include: Bridgehampton Crossing, Coppermine Village, Great Oak, Langdon’s Quarters, Mohawk Drive, Snowberry, Unionville