The Municipality of General Mariano Alvarez or simply GMA, is an urban municipality in the province of Cavite, Philippines. According to the 2007 census, it has a population of 136,613 people in an area of just 11.40 square kilometers, making it the most densely populated city/municipality in Cavite. The municipality is projected to have a population of 188,125 in 2010.
General Mariano Alvarez, the newest town of the Province of Cavite is formerly a part of the Municipality of Carmona. This new municipality was named after General Mariano Alvarez, one of the foremost sons of the province. He was a native of the town of Noveleta and he played a vital role during the Spanish Revolution. The town of General Mariano Alvarez is the brainchild of Assemblywoman Helena T. Benitez of the then First District of Cavite and Jose A. Roño, Minister of Local Government and concurrent Majority Floor Leader of Batasang Pambansa.
These two distinguished lawmakers co-authored the Batasan bill seeking to create the new town. Miss Benitez was also aided by another Assemblyman from the second District of Cavite in the person of Jorge A. Nuñez in alternately sponsoring the Bill and ably handling its passage through the different committee hearing and assembly sessions. The Municipality of General Mariano Alvarez came into existence upon the ratification by the majority votes cast in a plebiscite at Carmona and its duly constituted barangays within a period of 180 days after the approval of Batas Pambansa 76 and Parliamentary Bill No. 631 after which the President of the Philippines appointed the first set of Local Officials for the said town.
Upon the effectivity of the specified legal acts converting Barangays San Jose and San Gabriel into the Municipality of General Mariano Alvarez, its proportional share in the obligation of funds, assets and other properties of Carmona was transferred to the newly created municipality upon the recommendation of the Commission of Audit, which was approved on June 30, 1980. General Mariano Alvarez has a total land area of 938.0137 hectares more or less as per “Batasang Pambansa Bilang 76” dated June 13, 1980, which created the municipality. These areas are currently occupied by 27 barangays of which five are considered Poblacion barangays and 22 others are regular barangays.