Clay County, Missouri Genealogy Guide

Clay County, Missouri (Map It) was created on January 2, 1822 from Ray County. The county was named in honor of Henry Clay (1777-1852), American Senator and orator from Kentucky. Learn More About State of Missouri History

Clay County is bordered by Clinton County (north), Ray County (east), Jackson County (south), Wyandotte County, Kansas (southwest), Platte County (west).

Clay County Cities and Towns include Avondale, Birmingham, Claycomo, Ectonville, Excelsior Estates, Excelsior Springs, Gladstone, Glenaire, Holt, Kansas City, Kearney, Lawson, Liberty, Missouri City, Mosby, North Kansas City, Oaks, Oakview, Oakwood, Oakwood Park, Pleasant Valley, Prathersville, Randolph, Smithville, Sugar Creek.

A Map of Clay County, Missouri contains detailed information about roads and boundaries, these maps may include rural communities, churches, and cemeteries.

Clay County, Missouri Courthouse Records

Clay County, Missouri Courthouse
Clay County, MO Courthouse

The Clay County Courthouse is located in Liberty, Missouri. Learn More About State of Missouri 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 Clay 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.

  • Clay County Recorder of Deeds has Marriage Records from 1822 and Land Records from 1822. The 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.
  • Clay County Circuit Court Clerk / Probate Court Clerk has Probate Records from 1821 and Court & Divorce Records from 1822.The 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.
  • Clay County Clerk of the Court has Birth & Death Records from 1883-84. The 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.”
  • Clay 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, produced by the Missouri Local Records Preservation Program, is a compilation of inventories of local government records identified as having permanent or enduring value and housed primarily in county and municipal offices, but includes some libraries, museums, and historical and genealogical societies that maintain government records. Not all Missouri offices have been inventoried.
  • Clay County Health Department has Birth Certificates since 1920 and Death Certificates since 1980

Clay County, Missouri Census Records

Clay County, Missouri Vital Records

Clay County, Missouri Resources

Clay County, Missouri External Links