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Mercer County, Missouri
Genealogy, History & Facts

Mercer County, Missouri Facts

Mercer County

When was Mercer County, MO Created?
Mercer County was created on February 14, 1845 from Grundy County. The county was named in honor of John F. Mercer (1759–1821), an American lawyer, planter, and Governor of Maryland.

What is the County Seat of Mercer County, MO?
The County Seat is located in Princeton and in addition the county government website is unknown

What counties are adjacent to Mercer County, MO?
Bordering Counties are Decatur County, Iowa (northwest), Wayne County, Iowa (north), Putnam County (east), Sullivan County (southeast), Grundy County (south), Harrison County (west).

What cities and towns are in Mercer County, MO?
Cities and towns located in the County include Mercer, Princeton, South Lineville.

Mercer County, MO Vital Records

Where can find Mercer County Birth, marriage, Divorce and Death Records?
Mercer 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 Mercer 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 Mercer County Health Department has Birth Certificates since 1920 and Death Certificates since 1980.

Mercer County, MO Census Records

What Mercer County, MO census records are available?
There are many types of census records for Mercer 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.

Mercer Co. Slave Schedules is available for 1850 & 1860. Mercer Co. Mortality Schedules can be found for 1850, 1860, 1870 and 1880. Mercer Co. Industry and Agriculture can be found for 1850, 1860, 1870 and 1880. Mercer 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

Mercer County, MO Courthouse and Government Records

Mercer County Courthouse

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

  • Mercer County Courthouse (all departments listed below are located here, unless otherwise noted)
    • Address: 802 East Main Street, Princeton, Missouri 64673
  • Mercer 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: 660-748-4335
    • Marriage Records: 1898 (including Index to Marriage Records,1898-1933; Marriage Records,1898-1924; Application for marriage license,1898-1916) 
    • Land Records: 1846 (including Index to deeds 1846-1886; Deed Records 1846-1886; Quitclaim deeds,1877-1892; Sheriff's deeds,1881-1935) 
  • Mercer 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: (660) 748-4335
    • Probate Records: 1849  (including Index to probate records, no dates; Probate records,1849-1887; Will records and index 1853-1934) 
    • Court & Divorce Records: 1868 (including Circuit court records and index,1868-1887.) 
  • Mercer 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: (660) 748-3425
    • Birth & Death Records: 1883-94 (including Permanent record of births,1883-1894; Register of births and stillbirths,1883-1894; Permanent record of deaths,1883-1894) 
  • Mercer 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

Mercer County, MO Societies and Family History Resources

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

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

What other genealogical resources are available in Mercer County, MO?
The following are web links to Genealogy, Records and Resources pertaining to Mercer 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.

Mercer Co. MO Maps, Atlases & Gazetteers

Mercer Co. MO Books, Newspapers & Publications

Mercer Co. GA Cemeteries & Church Records

Mercer Co. MO Family Websites, Pictures & Histories

Mercer Co. MO General and History Websites

Mercer Co. MO Military Records

Mercer Co. MO Schools & Directories

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