Caloocan was initially represented as part of the at-large district of the province of Manila in the Malolos Congress from 1898 to 1899. The then-town was later incorporated to the province of Rizal, established in 1901, and was represented as part of the first district of Rizal from 1907 to 1941 and from 1945 to 1972.
Caloocan's political representation changed over time, initially belonging to the at-large district of Manila in the Malolos Congress, then becoming part of Rizal province and represented as a district within that province.