The city is represented in the lower house of the Congress through its lone congressional district.
San Juan, formerly known as San Juan del Monte, was initially represented as part of the at-large district of the province of Manila in the Malolos Congress from 1898 to 1899.
San Juan was separated from Rizal on November 7, 1975 by virtue of Presidential Decree No.
824,[1] and was represented in the Interim Batasang Pambansa along with other Metropolitan Manila municipalities and cities as part of Region IV from 1978 to 1984.
The two were separated and granted their [2] own representations in Congress by virtue of section 49 of Mandaluyong's city charter (Republic Act No.