^"TABLE 1. Population of legislative districts by Region, Province, and selected Highly Urbanized/Component City : 2020" (PDF). Philippine Statistics Authority. Retrieved June 17, 2022.
^"Number and Turn-Out of Registered Voters and Voters Who Actually Voted by City/Municipality May 9, 2022 National and Local Elections". Commission on Elections. Retrieved February 9, 2023.
^Republic Act No. 9387 (March 10, 2007), "An Act converting the municipality of Navotas into a highly urbanized city to be known as the city of Navotas" (PDF), www.congress.gov.ph, archived from the original (PDF) on March 3, 2016, retrieved January 12, 2022