According to the 2007 census, it has a population of 136,613 people in an area of just 11.40 square kilometers. The municipality was named after General Mariano Álvarez, a native of the town of Noveleta, Cavite, and one of the illustrious sons of the province. Bayan ng General Mariano Alvarez or simply GMA, is a first class urban municipality in the province of Cavite, Philippines. It is nicknamed
as the "Mushroom Capital of Cavite". Mariano Alvarez was originally divided into 10 barangays (more appropriately, areas) that were parts of the Carmona Resettlement Project. It comprised the resettlement areas in Barangays San Jose, and San Gabriel, and a portion of Cabilang Baybay, a barangay of the municipality of Carmona. San Jose consists of Areas A and B, while San Gabriel is composed of Areas C, D, E, F, G, H, I, J, and K. On March 25, 1985, by virtue of legislative and administrative acts, a referendum was made to redivide the municipality into the current 27 barangays. They were named after the revolutionary leaders of the province of Cavite - including those related to the great general to whom the municipality was named after - and the barangay captains and other prominent personalities who led the former 10 barangays. The first appointed officials of the barangays were sworn into office en masse on June 27, 1985. Five of the current barangays are classified as poblacion barangays, or those that are within the municipality's central area. The 22 others are ordinary barangays. The 27 barangays, are as follows:
* Aldiano Olaes
* Barangay 1 Poblacion (Area I)
* Barangay 2 Poblacion
* Barangay 3 Poblacion
* Barangay 4 Poblacion
* Barangay 5 Poblacion
* Benjamin Tirona (Area D)
* Bernardo Pulido (Area H)
* Epifanio Malia
* Francisco De Castro
* Francisco Reyes
* Fiorello Calimag (Area C)
* Gavino Maderan (Area J)
* Gregoria De Jesus
* Inocencio Salud (Area F)
* Jacinto Lumbreras (Area J)
* Kapitan Kua (Area F)
* Koronel Jose P. Elises (Area E)
* Macario Dacon (Area D)
* Marcelino Memije (Area H)
* Nicolasa Virata (San Jose)
* Pantaleon Granados (Area G)
* Ramon Cruz (Area J)
* San Gabriel (Area K)
* San Jose
* Severino De Las Alas (Area J)
* Tiniente Tiago
Total Land Area: 4,213 hectares
No. of Barangays: 27
Population (NSCB, August 1, 2007): 136,613
Income Class: 1st
Congressional District: 2nd
Registered Voters (NSCB, 2004): 77,437
Newly Elected Local Officials ( 2010 - 2013 )
Mayor - LEONISA JOANA B. VIRATA
Vice Mayor - PERCIVAL C. TUATIS
Councilor MARICEL E. TORRES
Councilor ESTELITA P. MANALANG
Councilor PHLONEL AISA C. GUTIERREZ
Councilor RICHARD D. LARA
Councilor ARTEMIO B. SAMBRANO
Councilor ANTONIO M. ALMORO
Councilor PASTOR P. GRABILLO Jr.
