Municipalities: Caloocan (became city 1962), Las Piñas, Malabon, Muntinlupa, Navotas, Parañaque, Pasay (became city 1947), Pateros, Mandaluyong (San Felipe Neri), San Juan del Monte, Makati (San Pedro Macati), Taguig, Quezon City (established 1939) .
Only areas of Quezon City that formerly belonged to Caloocan, Mandaluyong and San Juan voted as part of Rizal's first district until 1972.