Brooklyn Brooklyn Brooklyn () is the most populous borough of New York City, with a census-estimated 2,648,771 residents in 2017. Named after the Dutch village of Breukelen, it borders the borough of Queens, at the western end of Long Island. Brooklyn also has several bridge connections to the boroughs of Manhattan (across the East River) and Staten Island (across the Verrazzano Narrows Bridge). Since 1896, the borough has been coterminous with Kings County, the most populous county in the U.S. state of New York and the second-most densely populated county in the United States, after the county of New York (which
Third Avenue (Brooklyn) Third Avenue (Brooklyn) Third Avenue is a street in the New York City borough of Brooklyn. It runs parallel to Fourth Avenue for most of its length, and it also runs under the Gowanus Expressway from the Prospect Expressway to 65th Street. It has been mostly industrial for most of its existence, though the stretch of Third Avenue from Prospect Expressway to Downtown Brooklyn has recently undergone gentrification. The Third Avenue streetcar line formerly ran on Third Avenue from Fort Hamilton to the Brooklyn Bridge. The Fifth Avenue elevated line ran above Third Avenue in Sunset Park and Bay Ridge.