According to the United States Census Bureau, New York County has a total area of 33.6 square miles (87 km), of which 22.8 square miles (59 km) is land and 10.8 square miles (28 km) (32 %) is water. The northern segment of Upper Manhattan represents a geographic panhandle. Manhattan Island is 22.7 square miles (59 km) in area, 13.4 miles (21.6 km) long and 2.3 miles (3.7 km) wide, at its widest (near 14th Street).

What is the length of manhattan new york? Let's have some stream of consciousness first.
To answer this question, we should know that: Manhattan Island is 22.7 square miles (59 km) in area, 13.4 miles (21.6 km) long and 2.3 miles (3.7 km) wide, at its widest (near 14th Street). So, the answer is 13.4 miles ( 21.6 km ).