Located on the edge of the city's downtown, two blocks away from the Henry County Courthouse, the church is a prominent landmark in Napoleon.

The building's exterior, topped with a steeple that rises 200 feet (61 m) above the ground, is built of brick trimmed with stone.

A two-story brick rectory, bought by the parish in 1925,[4] sits behind the church, while a Catholic school lies next door.

[2] Across Clinton Street from the church is located a convent of the Sisters of Notre Dame, a two-story Italianate building constructed in 1862.

First Presbyterian Church, located on Washington Street four blocks southwest of St. Augustine's, features an American Gothic exterior built of multicolored sandstone.