The Mumbai Metropolitan Region (MMR) spread over 6,328 sq. km. consists of 9 Municipal Corporations viz. Greater Mumbai, Thane, Kalyan-Dombivali, Navi Mumbai, Ulhasnagar, Bhiwandi- Nizamapur, Vasai-Virar, Mira-Bhayandar and Panvel; and 9 Municipal Councils viz. Ambarnath, Kulgaon-Badalapur, Matheran, Karjat, Khopoli, Pen, Uran, Alibaug and Palghar, along with more than 1,000 villages in Thane, Raigad and Palghar Districts. MMRDA is responsible for the balanced development of the MMR.

Basic Information on Greater Mumbai And Mumbai Metropolitan Region (MMR)
1. Geographical Area (As per GIS)
Greater Mumbai (sq. km.) : 437
Mumbai Metropolitan Region (sq. km.): 6328
2. Population		Figures (in lakhs) As per Census 2011
Municipal Corporations
1	Municipal Corporation of Greater Mumbai	124.42
2	Thane Municipal Corporation	18.41
3	Kalyan- Dombivali Municipal Corporation	15.18
4	Ulhasnagar Municipal Corporation	5.06
5	Mira -Bhayandar Municipal Corporation	8.09
6	Bhiwandi-Nizampur Municipal Corporation	7.09
7	Navi Mumbai  Municipal Corporation	11.2
8	Vasai Virar City Municipal Corporation	12.22
9	Panvel Municipal Corporation	5.09
Municipal Councils
1	Ambarnath Municipal Council	2.53
2	Kulgaon-Badalapur Municipal Council	1.74
3	Alibag Municipal Council	0.21
4	Pen Municipal Council	0.38
5	Uran Municipal Council	0.04
6	Matheran Municipal Council	0.71
7	Khopoli Municipal Council	0.3
8	Karjat Municipal Council	0.69
9	Palghar Municipal Council
Nagar Panchayat
1	Khalapur	0.06
Rest of MMR		22.2
Total		235.98