Iglesia de San Jerónimo de Ilo, Colonial church in Ilo, Peru.

The Iglesia de San Jerónimo is the main religious building of Ilo, standing on the Plaza de Armas. It was begun on 14 February 1871, when Colonel Juan Francisco Balta laid the first stone. Wood and corrugated metal (calamina) are the materials used in the building, which is listed as Cultural Heritage of the Nation.

Construction began on 14 February 1871, when Colonel Juan Francisco Balta laid the first stone. The parish was built as the main religious building of Ilo, on the Plaza de Armas. It was declared Cultural Heritage of the Nation by Resolution R.M. Nº47582-ED.

The parish church stands on the Plaza de Armas of Ilo, the city's central square, and is the town's main religious building. Its patron is Saint Jerome, San Jerónimo, after whom the parish is named. In 2010 it was declared Cultural Heritage of the Nation by Resolution R.M. Nº47582-ED.

The church stands on the Plaza de Armas of Ilo, the city's central square, so it is reached on foot from the surrounding blocks. It is an active parish: visits fit around mass times, and the building is a declared national cultural heritage, so touching or leaning on the wood and sheet-metal walls is best avoided.

The first stone was laid on 14 February 1871 by Colonel Juan Francisco Balta, and the church was later declared Cultural Heritage of the Nation by Resolution R.M. Nº47582-ED. Its walls are of wood and corrugated metal sheeting, materials that define its appearance on the Plaza de Armas.