Park Slope is an affluent neighborhood in northwest Brooklyn, New York City. Park Slope is roughly bounded by Prospect Park and Prospect Park West to the east, Fourth Avenue to the west, Flatbush Avenue to the north, and Prospect Expressway to the south. Generally, the section from Flatbush Avenue to Garfield Place (the "named streets") is considered the "North Slope", the section from 1st through 9th Streets is considered the "Center Slope", and south of 10th Street, the "South Slope". The neighborhood takes its name from its location on the western slope of neighboring Prospect Park. Fifth Avenue and Seventh Avenue are its primary commercial streets, while its east-west side streets are lined with brownstones and apartment buildings.Park Slope features historic buildings, top-rated restaurants, bars, and shops, as well as proximity to Prospect Park, the Brooklyn Academy of Music, the Brooklyn Botanic Garden, the Brooklyn Museum, the Brooklyn Conservatory of Music, and the Central Library as well as the Park Slope branch of the Brooklyn Public Library system. The neighborhood had a population of about 62,200 as of the 2000 census, resulting in a population density of approximately 68,000/square mile, or approximately 26,000/square kilometer. Park Slope is considered one of New York City's most desirable neighborhoods. In 2010, it was ranked number 1 in New York by New York Magazine, citing its quality public schools, dining, nightlife, shopping, access to public transit, green space, safety, and creative capital, among other aspects. It was named one of the "Greatest Neighborhoods in America" by the American Planning Association in 2007, "for its architectural and historical features and its diverse mix of residents and businesses, all of which are supported and preserved by its active and involved citizenry." In December 2006, Natural Home magazine named Park Slope one of America's ten best neighborhoods based on criteria including parks, green spaces and neighborhood gathering spaces; farmers' markets and community gardens; public transportation and locally owned businesses; and environmental and social policy. Park Slope is part of Brooklyn Community Board 6.