When the City of Iloilo was created in 1936 by merging the municipalities of Arevalo, Iloilo and La Paz, the new city remained within the second district of Iloilo province.
The creation of Iloilo City in 1936 involved merging three municipalities (Arevalo, Iloilo, and La Paz). This new city continued to be located within the second district of Iloilo province.