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Williamson County, Illinois
Genealogy, History & Facts

Williamson County, Illinois Facts

Williamson County

When was Williamson County, IL Created?
Williamson County was established on February 28, 1839 from Franklin County. This county was named for Hugh Williamson (1735-1819), delegate from North Carolina to the Philadelphia Convention.

What is the County Seat of Williamson County, IL?
The County Seat is located in Marion also, the county government website is .

What counties are adjacent to Williamson County, IL?
Bordering Counties are  Franklin County, Saline County, Pope County, Johnson County, Union County, Jackson County

What cities and towns are in Williamson County, IL?
Cities and towns located in the County include  Bush, Cambria, Carterville, Colp, Crainville, Creal Springs, Energy, Herrin, Hurst, Johnston City, Marion, Pittsburg, Spillertown, Whiteash.

What Townships are in Williamson County, IL?
Townships located in the County include Blairsville, Carterville, Corinth, Crab Orchard, Creal Springs, East Marion, Grassy, Herrin, Lake Creek, Southern, Stonefort, West Marion.

Williamson County, IL Vital Records

Where can find Williamson County Birth, marriage, Divorce and Death Records?
Williamson County vital records can be found at the Illinois Department of Public Health has copies of birth, marriage, divorce and death records. There is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in Illinois for current fees and application process.

You can search online for Williamson County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for Illinois Birth CertificateMarriage CertificateDivorce CertificateDeath Certificate Applications to mail.

Williamson County, IL Census Records

What Williamson County, IL census records are available?
There are many types of census records for Williamson County guide you in researching your family tree. Federal Population Schedules are available for 1840, 1850, 1860, 1870, 1880 (free index), 1890 (fragment), 1900, 1910, 1920, 1930, 1940.

Williamson Co. Mortality Schedules can be found for 1850, 1860, 1870 and 1880. Williamson Co. Industry and Agriculture can be obtained for 1850, 1860, 1870 and 1880. Williamson Co. Union Veterans Schedules is available for 1890. One can find free online and printable census forms to help you with your research. See Also Illinois Census Records Research Guide

Williamson County, IL Courthouse and Government Records

Williamson County Courthouse

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

  • Williamson County Courthouse (all departments listed below are located here, unless otherwise noted)
    • Address: 200 W. Jefferson, Marion, IL 62959
  • Williamson County Clerk & Recorder of Deeds maintains records and issues certificates of vital statistics (birth certificates, death certificates, and marriage certificates) for the entire County. The Recorder's duties are receiving, filing and maintaining all records related to real property in our county. These documents range from all types of conveyance deeds, mortgages, releases and assignments, property liens, as well as, assorted federal, state and local liens. The Recorder’s office is responsible for the recordation and storage of plats of subdivision, land surveys and monument records. Many other types of miscellaneous documents are recorded, such as; foreign birth certificates, foreign marriage licenses, and military discharge paperwork to name a few.
    • Phone: 618-997-1301, ext. 101
    • Marriage Records: 1839
    • Birth & Death Records: 1877
    • Land Records: 1818
  • Williamson County Clerk of the Circuit Court, commonly known as the Circuit Clerk, is the keeper of the files and records of the Circuit Court. The Circuit Clerk's Office retains documents some of which include criminal law, chancery, support, probate, adoption, ect....
    • Phone: 618-997-1301, ext. 114
    • Probate Records: 1839
    • Court Records: 1836
  • Williamson County Treasurer's Office is responsible for the statutory duties required as County Treasurer and as Ex-Officio County Collector of Real Estate Property Taxes and Drainage District Taxes for the entire county.
  • The county archives of the state of Illinois
  • Local Government Records Database - provides a listing of the local governmental records held by the Illinois Regional Archives Depository (IRAD) system
  • BLM Land Records

Williamson County, IL Societies and Family History Resources

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

Where can I connect with other Williamson County, IL Researchers through message boards and forums?

What other genealogical resources are available in Williamson County, IL?
The following are web links to Genealogy, Records and Resources pertaining to Williamson County. These genealogy links fall into 3 categories: Commercial Sites, Private Sites or Organization Sites. Some have free access some require a cost. This is simply a collection that has been gathered or submitted. I do not recommend or promote one genealogy site over another.

Williamson Co. IL Maps, Atlases & Gazetteers

Williamson Co. IL Books, Newspapers & Publications

Williamson Co. IL Cemeteries & Church Records

Williamson Co. IL Family Websites, Pictures & Histories

Williamson Co. IL General and History Websites

Williamson Co. IL Military Records

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