Los Palacios y Villafranca was born as a result of the unification between Los Palacios and Villafranca de la Marisma in 1836. It has about 38, 100 inhabitants.

Situated to the south of Seville, on the N-IV old Cadiz road, Dos Hermanas is the second-biggest and most important town by population in Seville province, and the ninth-largest town in Andalucia, with about 120,000 inhabitants.

Alcalá de Guadaíra used to be known as Alcalá de los Panaderos; the word panaderos meaning bread-makers, as this town supplied most of Seville's bread. It has about 75, 000 inhabitants.