History
The county's first courthouse was a log building built on a farm for about $2,000 in 1860. It was later moved to a different location where it served as a schoolhouse, blacksmith shop, and a stable. The county's second courthouse was completed in April 1874 for about $2,000 as well. It was built in the recently established county seat of Primghar. That building was replaced by the third courthouse that was built in 1887 for $6,000. The building measured . An addition was built on to the structure in 1902 to create additional space for the county government. The present courthouse was completed in 1915 for $159,000. Designed by theArchitecture
The building is three stories tall and the exterior is clad in Bedford stone. It features six Doric columns ''in antis'' on the main facade, and rather large windows. The interior corridors are made of marble and the handrails in the stairways are finished inReferences
{{NRHP in O'Brien County, Iowa Government buildings completed in 1917 Primghar, Iowa Beaux-Arts architecture in Iowa Buildings and structures in O'Brien County, Iowa Courthouses on the National Register of Historic Places in Iowa County courthouses in Iowa National Register of Historic Places in O'Brien County, Iowa