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St. Clair County, Missouri
Genealogy, History & Facts

St. Clair County, Missouri Facts

StClair County

When was St. Clair County, MO Created?
St. Clair County was created on January 29, 1841 from Rives County. The county was named in honor of Arthur St. Clair (1737–1818), an American soldier and Governor of the Northwest Territory .

What is the County Seat of St. Clair County, MO?
The County Seat is located in Osceola and in addition the county government website is

What counties are adjacent to St. Clair County, MO?
Bordering Counties are Henry County (north), Benton County (northeast), Hickory County (east), Polk County (southeast), Cedar County (south), Vernon County (southwest), Bates County (northwest).

What cities and towns are in St. Clair County, MO?
Cities and towns located in the County include Appleton City, Collins, Gerster, Lowry City, Osceola, Roscoe, Taberville, Vista.

St. Clair County, MO Vital Records

Where can find St. Clair County Birth, marriage, Divorce and Death Records?
St. Clair County vital records can be found at the Missouri Office of Vital Records has copies of birth and death records reported from January 1, 1910. There is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in Missouri for current fees and application process.

You can search online for St. Clair County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for Missouri Birth and Death CertificateMarriage and Divorce Certificate Application to mail.

Another resource is the St. Clair County Health Department has Birth Certificates since 1920 and Death Certificates since 1980.

St. Clair County, MO Census Records

What St. Clair County, MO census records are available?
There are many types of census records for St. Clair County guide you in researching your family tree. Federal Population Schedules are available for 1850, 1860, 1870, 1880 (free index), 1890 (fragment), 1900, 1910, 1920, 1930, 1940.

St. Clair Co. Slave Schedules is available for 1850 & 1860. St. Clair Co. Mortality Schedules can be found for 1850, 1860, 1870 and 1880. St. Clair Co. Industry and Agriculture can be found for 1850, 1860, 1870 and 1880. St. Clair Co. Union Veterans Schedules can be acquired for 1890. There are free down-loadable and printable census forms to help you with your research. See Also Missouri Census Records Research Guide

St. Clair County, MO Courthouse and Government Records

St. Clair County Courthouse

What genealogical records can I find in the St. Clair County Courthouse?
The below facts shows exactly what death, marriage, birth, property, wills, and court records are typically in St. Clair County. The years listed below are the first noted records with this county. See Also Missouri Corthouse Records Research Guide.

  • St. Clair County Courthouse (all departments listed below are located here, unless otherwise noted)
    • Address: 655 Second St., Osceola, MO 64776
  • St. Clair County Recorder of Deeds is the place where all transactions having to do with land are recorded and kept on file. They take marriage license applications, issues marriage licenses, files the license after the marriage, and maintains a permanent record of the marriage, surveys and plats of subdivisions, Armed Forces discharge papers for all veterans who reside in the county. Some naturalization records have been found with the deeds.
    • Phone: 417-646-2950
    • Marriage Records: 1855 (including Marriage records, 1855-1926) 
    • Land Records: 1841 (including Index to deeds, 1841-1861 and 1863-1886; Deed records, 1841-1903) 
  • St. Clair County Circuit Court Clerk / Probate Court Clerk has the direct index to records such as divorces, adoptions, judgment, and tax fee books including direct and indirect indexes. They also retain the index to criminal records and criminal files of the circuit court. Adoptions are under the jurisdiction of the circuit court. Naturalization records, including petitions, declarations of intention, certificates, and certificates of allegiance, and granting of citizenship are also located in the clerk's office, as well as an index to civil case files. The County Probate Division has jurisdiction over the estates of deceased persons. The Division hears all litigation involving trusts, including those trusts established in wills. (In the smaller counties, probate matters are handled in the same office as the associate circuit court office)
    • Phone: 417-646-2226
    • Probate Records: 1865  (including Index to probate records, 1865-1888; Pro­bate records, 1865-1888; Administrator’s/executor’s letters, bonds and records, 1865-1890; Settlement records, 1870-1892; Will records, 1865-1921) 
    • Court & Divorce Records: 1841 (including Index to circuit court records, 1841 -1 904; Circuit court records, 1841-1883) 
  • St. Clair County Clerk of the Court has indexes to common pleas, records of all extant proceedings, chancery minute books, records of births and deaths, county court records, right-of-way and road records, as well as surveyor's records (including field notes and plats made by the county surveyor). This office usually holds the county treasurer's notes, bonds and commissions, records of marks and brands, wolf scalps, stray notices, real estate assessments, and tax books. In some counties, early terms for this court included “Chancery” or the “Court of Common Pleas.”
    • Phone: (417) 646-2315
    • Birth & Death Records: 1883–1903 (including Register of births and stillbirths, 1883-1885; Permanent record of births, 1883-1903; Permanent record of deaths, 1883-1890) 
  • St. Clair County Tax Assessor Office is responsible for appraising and assessing real estate property and person property for the purpose of taxation as well as transferring ownership of real estate, and keeping real estate maps up to date.
  • Local Records Inventory Database
  • State-Issued Land Patents 1831 - 1969
  • BLM Land Records

St. Clair County, MO Societies and Family History Resources

What genealogical and historical societies, archives, museums, associations and libraries are available for St. Clair County, MO?
A list of St. Clair County Historical  and Genealogical Societies, Libraries, Archives. See also list of Statewide Missouri Archives, Historical & Genealogical Societies.

Where can I connect with other St. Clair County, MO Researchers through message boards and forums?

What other genealogical resources are available in St. Clair County, MO?
The following are web links to Genealogy, Records and Resources pertaining to St. Clair County. A majority of these genealogy links fall into 3 categories: Business Sites, Private Sites or Organization Sites. Some have free access some have to have a payment. This is just a directory which has been gathered or submitted. I do not endorse or promote one genealogy site above another.

St. Clair Co. MO Maps, Atlases & Gazetteers

St. Clair Co. MO Books, Newspapers & Publications

St. Clair Co. GA Cemeteries & Church Records

St. Clair Co. MO Family Websites, Pictures & Histories

St. Clair Co. MO General and History Websites

St. Clair Co. MO Military Records

St. Clair Co. MO Schools & Directories

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