Donald J. Trump State Park is a 436-acre (1.8 km2) undeveloped state park located within the towns of Yorktown and Putnam Valley in Westchester County and Putnam County, New York.The park consists of property that was donated to New York State in 2006 by the now-President of the United States Donald Trump, and is named after him. Maintenance of the park was halted in 2010 due to budget constraints, and the park remains largely undeveloped as of 2015. Most of the buildings have been demolished, only a few foundations and the existing tennis court remain for now in 2017.