The church is located southeast of Harper, Iowa, United States, in Clear Creek Township, Keokuk County.

They were largely centered in Clear Creek and German Townships and their population, as well as that of the county itself, peaked in 1895.

The parish started its first church building built of brick in 1863, which was dedicated to the apostles Peter and Paul.

Ferdinand S. Borgolte from Rock Island, Illinois was chosen as the architect, and Harry Schroeder of Washington, Iowa as the contractor.

[4] the Hammes family also played a role in the construction, The bricks were produced by Fuller & Schumacher of Muscatine, Iowa.

The cemetery's decorative fence was added in 1919 as a thanksgiving offering for the survival of all eighteen of the parish's servicemen in World War I and the lack of any deaths in the 1918 flu pandemic.

[3] The parish was one of fourteen in the Ottumwa Deanery that formed the Notre Dame Catholic Youth Organization in 1948.

[6] Ten years later the parish voted to join the Keota-Harper Catholic School System.

[4] On June 13, 2009, Bishop Martin Amos approved the sale of the church building to the Clear Creek Heritage Association.

[3] The building is Victorian Gothic in style and constructed in two-tone orange brick laid in a common bond.

There is a central entrance tower, which rises 150 feet (46 m), and was the tallest structure in Keokuk County when it was built.

The 14 stained glass windows in the nave and the apse were donated by parish families and they portray various saints.

Juhl, a German-born Jew, was an accomplished woodcarver who carved the altars for several of Davenport's Catholic churches.

Media related to Saints Peter and Paul Catholic Church (Harper, Iowa) at Wikimedia Commons