In most counties in the United States the local district and county courts conduct their business in a large centrally located courthouse which may also house the offices of the county treasuer, clerk and recorder and assessor.

Marion County Courthouse, Salem, Oregon
In some cases this building may be renamed in some way or its function divided as beween a judicial building and administrative office building. Many judges also officiate a civil ceremony of marriage in their courthouse chambers.

The courthouse is part of the iconography of American life often shown as a scene in movies.