Manhattan is the largest borough of New York City.
 The centralized New York City government is responsible for public education, correctional institutions, libraries, public safety, recreational facilities, sanitation, water supply, and welfare services in Manhattan
== Geography ===== Components ===The borough consists of Manhattan Island, Marble Hill, and several small islands, including Randalls Island and Wards Island, and Roosevelt Island in the East River, and Governors Island and Liberty Island to the south in New York Harbor

