Brooklyn is one of the five boroughs of New York City and has its own independent city hall. Brooklyn Borough Hall is the administrative center of Brooklyn, located at 209 Joralemon Street, Brooklyn, NY 11201. Completed in 1849, this Greek Revival style building is one of New York's landmarks and is listed on the National Register of Historic Places.

Brooklyn Borough Hall is where the office of the Borough President is located. The Borough President represents the interests of the borough and provides input on the city's budget review, land use planning, and more. The current Borough President of Brooklyn is Antonio Reynoso, who took office in 2022. The Borough President plays a crucial role in leading the city's administration alongside the Mayor of New York City and the City Council.

In New York City's administrative structure, Brooklyn is the same area as Kings County. In other words, Brooklyn Borough and Kings County refer to the same geographical area. The Kings County Courthouse handles criminal and civil cases and is located in downtown Brooklyn. Administrative services related to Brooklyn, such as court functions, registration, and tax payments, are primarily managed in the administrative hub of downtown Brooklyn.

The overall administration of New York City is divided into the city government led by the Mayor and the City Council, which consists of 51 council members. In Brooklyn, multiple council members are elected across various districts, and they reflect local issues in city policies through the City Council. All major city services, including the New York City Department of Education (DOE), the New York Police Department (NYPD), the Fire Department of New York (FDNY), and the Department of Sanitation (DSNY), are integrated and operated under the Mayor's direct authority, so Brooklyn residents have access to the same city services.

Brooklyn's 311 service is a portal for residents to request city services or information, available 24/7 via phone or app. Routine complaints such as road repairs, garbage collection issues, and noise complaints can be submitted through 311. The Brooklyn Borough Hall website (brooklyn-usa.org) provides various information on local events, administrative services, and development plans.