[1] Before the construction of St. Charles, eleven masses and three priests were needed to serve the population;[1] only 1250 seats were available across the Good Shepherd parish.

[2] The initial building of the church cost $21 million, from diocesan funds and parishioner contribution;[1] more work to be done after the initial phase, to be supported by additional fundraising, includes installing stained glass, shrines to Our Lady of Guadalupe and Our Lady of Fatima, and an outdoor garden with native plants.

[3] At its completion, it surpassed the previous highest-capacity Catholic parish church in the United States, St Matthew in Charlotte, by almost 1000 seats.

[3] To fit the size of the church, the painted figures are life-size, and a crucifix behind the altar has a 7 feet (2.1 m) tall Jesus sculpture.

[1] It is part of the Good Shepherd parish, which is made up of St. Charles, two other churches in Visalia, and one in Goshen, that serves approximately 14,000 families.

[3] Saints whose relics are housed in the church include Peter the Apostle, Thomas Becket and Faustina Kowalski.