The President of the Republic of the Philippines signed on March 27, 2015 by the Republic Act No. 10658, separating Biñan from the first district of the province. The cities of San Pedro and Santa Rosa remained in the first district.[1]
The city elected its first representative in the 2016 elections. However, for the purpose of electing Provincial Board members, the city's residents still vote as part of the province's 1st Sangguniang Panlalawigan district.
Lone District
Legislative districts and representatives of Biñan