Pennington County Courthouse, County courthouse in Rapid City, United States

Pennington County Courthouse is a three-story Beaux-Arts building at 315 St. Joseph Street in Rapid City, designed by W. E. Hulse & Company of Hutchinson, Kansas. It is built of Indiana limestone with terra cotta trim. The two-story front entrance is divided by four pairs of Ionic columns, and three large arched windows with keystones decorate the main sections. A frieze with ornamental medallions and a dentillated cornice surround the building above the second story.

The courthouse was built in 1922 and reflects the architectural trends of that era. Its inclusion in the National Register in 1976 recognized its value as a historic example of public building design.

The courthouse has served as the seat of Pennington County government since 1922, and county business is still conducted in the building. Its 1976 listing on the National Register of Historic Places recognized it as a historic public building. The name comes from the county it serves, not from the building itself.

The building is located downtown and easily accessible on foot. As an active courthouse, expect that some areas may not be open to public access.

The entrance sits at the base of the central arched window and is topped by a carved cartouche, with iron grilles on its windows and transom. A frieze of ornamental medallions and a dentillated cornice ring the building above the second story.