Águas de São Pedro
Recognizing the importance of the thermal springs in the region, the São Paulo State Government on 19 June 1940 founded the (Hydromineral and Climatic Spa of Águas de São Pedro). Despite this, the city celebrates its birthday on 25 July, the date in 1940 of the founding of the first major building in the city, the "Grande Hotel" (now "Grande Hotel São Pedro"). The municipality of Águas de São Pedro was incorporated by State Law No.233, of 24 December 1948.
Águas de São Pedro
Years after the foundation of the parish, a new site near the central area of the city was selected for the construction of a new church, but those plans were not completed because Canon Marcos Van Inn, the creator of the project, died. Then the parochial hall of the city was nominated by the Bishop of Piracicaba, Don Aníger Maria Melillo, to be adapted into the city's Mother Church, as it remains today. The title of Immaculate Conception was transferred from the old chapel to the Mother Church, and the chapel is now dedicated to Our Lady of the Immaculate Conception of the Apparition.