Manhattan is the most densely populated borough of New York City, serving as its economic center, cultural identifier, and historical birthplace. It is coextensive with New York County and consists of Manhattan Island, bounded by the Hudson, East, and Harlem Rivers. Manhattan Island is divided into Lower, Midtown, and Upper Manhattan.

1. Manhattan is the most densely populated borough of New
York City, its economic and administrative center, its
cultural identifier,and its historical birthplace.
MANHATTAN, NEW YORK

2. The borough is coextensive with New York County, one of the original counties
of the U.S. state of New York. The borough consists mostly of Manhattan
Island, bounded by the Hudson, East, and Harlem rivers .
HARLEM RIVER EAST RIVER
Manhattan Island is divided into three informally bounded components, each
aligned with its long axis: Lower, Midtown, and Upper Manhattan.