O'Brien County, Iowa Genealogy Guide

O'Brien County, Iowa (Map It) was created on January 15, 1851 (Organized in 1860) from Unorganized Territory. O'Brien County was named in honor of William Smith O'Brien, (1803–1864), Irish revolutionary who was inspired by American democratic ideals. Learn More About State of Iowa History

O'Brien County is bordered by Osceola County (north), Clay County (east), Cherokee County (south), Sioux County (west).

O'Brien County Cities and Towns include Archer, Calumet, Hartley, Paullina, Primghar, Sanborn, Sheldon, Sutherland.

A O'Brien County, Iowa County and City Maps contains detailed information about roads and boundaries, these maps may include rural communities, churches, and cemeteries.

O'Brien County, Iowa Courthouse Records

OBrien County, Iowa Courthouse
O'Brien County, IA Courthouse
Courthouse History

The O'Brien County Courthouse is located in Primghar, Iowa. O'Brien County was attached to Woodbury County for a breif time prior to organization April 7, 1860. Some early records may be found there. Learn More About State of Iowa Court, Tax, Land and Probate Records.

Please contact the each clerk's department to confirm mailing address, hours, fees and other information before visiting or requesting information because contact information sometimes changes.  The Clerk's Office DOES NOT DO RESEARCH.  The documents are available to interested parties, barring confidential issues.  Most staff will assist people in finding the materials, but it is up to the individual to do the research.

The following dates indicates what vital, land, probate, and court records are in O'Brien county. The date listed for each category of record is usually the earliest registration filed. The earliest date does not indicate that there are numerous records for that year and does not mean that all such events were actually registered.

  • O'Brien County Recorder's Office has Birth / Death Records from 1880, has Marriage Records from 1860 and has Land Records from 1857. he County Recorder's Office maintains official records of documents affecting title to real estate. Every real estate transaction that takes place begins in the Recorder's Office. One of the major duties of the office is the management of public records. As a result, accuracy and preservation of records are a must in the Recorder's Office. In addition to real estate transactions, the Recorder's Office issues titles and liens; records veterans discharge papers; processes passport applications; accepts marriage applications and issues the subsequent license; issues certified copies of birth, death and marriage records as well as other numerous duties.
  • O'Brien County Clerk of Court has Probate Records from 1880?and has Court Records from 1870. The County Clerk of Court manages and maintains all trial court records, including pleadings, evidence and orders. The clerks of court have hundreds of administrative duties. They accept and process fines, fees and court costs owed to the state, child support checks, and civil judgments owed to litigants. They maintain a record of liens on all real estate in the county. Clerks help with involuntary hospitalization cases. They have the authority to dispose of scheduled violations which are not contested and do not require a court hearing. Clerks are also responsible for informing state and local government agencies of court orders.
  • O'Brien County Tax Assessor is responsible for assess and appraise all real estate and personal property, to have access to all public records of the county for the purpose of securing information pertaining to accurate listings of taxable property.

O'Brien County, Iowa Census Records

O'Brien County, Iowa Vital Records

O'Brien County, Iowa Resources

O'Brien County, Iowa External Links