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Please add profiles of those who were born, lived or died in O'Brien County, Iowa.

The county was created in 1851 and named for William Smith O'Brien, a leader for Irish independence in 1848.

The new county's first settler arrived in 1856; Hannibal H. Waterman brought his wife and a daughter to the southeast portion (present Waterman Township). His homestead formed the nucleus of the county's first community, and a small building was erected there to function as a courthouse.

Adjacent Counties

Cities, Townships & Communities

Archer | Baker | Caledonia | Calumet | Carroll | Center | Dale | Floyd | Franklin | Gaza | Germantown | Grant | Hartley | Highland | Liberty | Lincoln | Moneta | Omega | Paullina | Primghar (County Seat) | Sanborn | Sheldon | Summit | Sutherland | Union | Waterman



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