The name of the city, Mumbai is derived from patron deity the Mother Goddess Mumba Devi, worshiped by the earliest inhabitants the Kolis.

The District Mumbai City  is situated on the West coast of India between 18˚ 52′ and 19˚ 04′ North latitudes and 72˚47′ and 72˚54′ East longitudes. It is surrounded on three sides by water, the open Arabian Sea to the West and South and Thane creek to the East. To the North it is bordered by Mumbai (Suburban) District.

It is the Southern part of Greater Mumbai Municipal corporation, which covers an area of 157.0 sq.kms as per the Surveyor General of India and has a population of 30,85,411 persons as per the Census 2011.

The literacy rate of Mumbai district is 89.2 percent. The sex ratio of Mumbai district is 832.