McClain County was created on July 16, 1907 from Chickasaw lands. The County was named for Charles McClain, member of the Constitutional Convention. The County Seat is Purcell.
Counties adjacent to McClain County are Cleveland County (north), Pottawatomie County (northeast), Pontotoc County (east), Garvin County (south), Grady County (west)
McClain County Cities & Towns Include Blanchard, Byars, Cole, Dibble, Goldsby, Newcastle, Purcell, Rosedale, Washington, Wayne

All Departments below can be contacted at the McClain County Courthouse at PO Box 629, Purcell, OK 73080-0629; Phone: (405) 527-3117. NOTE: The record dates below are from the earliest date to present time.
McClain County Clerk's Office has Birth Records from 1908, Death Records from 1883 and , Land Records from 1891.
The County Clerk's office is responsible for preserving all the legal instruments filed by private citizens and public officials with the County Clerk's office. The office maintains files of all real estate records, plats, judgments, liens, patents, military discharges, school records, county personnel, insurance and retirement records for employees, meeting notices, commissioners' proceedings and other documents. Although county clerks record births and deaths and provide information on request, certificates are available only from the Vital Records Section, State Department of Health
McClain County Court Clerk's Office has Probate Records from 1895, Marriage Records from 1907, and Court Records from 1895.
The Court Clerk has the primary responsibility to record, file, and maintain permanent records of the proceedings of the District Court. We collect fines, fees, and forfeitures, and distribute the collected monies as provided by law to the appropriate agencies. There are numerous types of cases filed with the Court Clerk's Office some of which include: Civil, Small Claims, Probate, Guardianship, Adoption, Felony, Misdemeanor, Search Warrants, Licenses and more...
McClain County Tax Assessors Office, PO Box 629, Purcell, OK 73080-0629; Phone: (405) 527-3117
The county assessor has the responsibility to appraise and assess the real and personal property within the county for the purpose of ad-valorem taxation. Also, the county assessor is required to compute the ad-valorem taxes due on all the taxable property. By law, the county assessor appraises all the taxable real property according to its fair cash value for which the property is actually being used.
The county treasurer or assessor may have tax or assessment records. Some tax records are stored in museums, historical, and/or genealogical societies' repositories. Published tax records for Oklahoma are almost nonexistent. Some duplicated copies of county tax records are stored in the Oklahoma Department of Libraries, State Archives Division for security purposes, but are not available for research. Koplowitz, Guide to the Historical Records of Oklahoma, indicates location of county records, including those of tax and assessments.
Below is a list of online resources for McClain County Court Records. Email us with websites containing McClain County Court Records by clicking the link below:
Birth, marriage, and death records are connected with central life events. They are prime sources for genealogical information.
Vital Records Service, Oklahoma State Department of Health, 1000 Northeast 10th, Oklahoma City, OK 73117;(405) 271-4040, They have the following records:
Below is a list of online resources for McClain County Vital Records. Email us with websites containing McClain County Vital Records by clicking the link below:

Few, if any, records reveal as many details about individuals and families as do government census records. Substitute records can be used when the official census is unavailable
Countywide Records: Federal Population Schedules that exist for McClain County, Oklahoma are 1900, 1910, 1910, 1920 and 1940.There are free downloadable and printable Census forms to help with your research. These include U.S. Census Extraction Forms and U.K. Census Extraction Forms.
Below is a list of online resources for McClain County Census Records. Email us with websites containing McClain County Census Records by clicking the link below:
Below is a list of online resources for McClain County Military Records. Email us with websites containing McClain County Military Records by clicking the link below:
Below is a list of online resources for McClain County Genealogical Addresses. Email us with websites containing McClain County Genealogical Addresses by clicking the link below:
There are many churches and cemeteries in McClain County. Some transcriptions are online. A great site is the McClain County Tombstone Transcription Project.
Below is a list of online resources for McClain County Cemetery & Church Records. Email us with websites containing McClain County Cemetery & Church Records by clicking the link below:
Below is a list of online resources for McClain County Family Trees, web forums and other family type information. Email us with websites containing McClain County Family Trees, web forums and other family type information by clicking the link below: