Gramercy Park is the name of both a small, fenced-in private park, and the surrounding neighborhood, in Manhattan in New York City. The approximately 2-acre park, located in the Gramercy Park Historic District, is one of two private parks in New York City – the other is Sunnyside Gardens Park in Queens – as well as one of only three in the state; o…Gramercy Park is the name of both a small, fenced-in private park, and the surrounding neighborhood, in Manhattan in New York City. The approximately 2-acre park, located in the Gramercy Park Historic District, is one of two private parks in New York City – the other is Sunnyside Gardens Park in Queens – as well as one of only three in the state; only people residing around the park who pay an annual fee have a key, and the public is not generally allowed in – although the sidewalks of the streets around the park are a popular jogging, strolling, and dog-walking route.