Williamson County, established in 1839 was named after Hugh Williamson and has a total area of 444.35 sq mi. The County seat and the largest city is Marion. The total population of the county is over 66.3K with a rich mix of White, Native American, black or African American, Asian, Hispanic or Latino, Pacific Islander, and others with more than 25.3K households and 16.9K families. It is situated in the southern part of Illinois in the area known as Little Egypt.

You can thus rely upon the Williamson County records website to retrieve information on American Civil War history, last will or probate specifics, demise facts, burial and cemetery details, divorce decree information, obituary notice, origin and birth details, World War I and II information, marriage volume number, land and estate data, census data, immigration and naturalization specifics, war and enlistment data, real estate and property facts, civil court case lookups and plenty of essential specifics without any hesitation.