Named in favor of St. Charles Borromeo, Saint Charles County was created in the year 1812 with an area of 592 sq mi. Being the third most populous county in Missouri, it has about 0.36 million people with a rich blend of different and diverse races including White, Native American, black or African American, Asian, Hispanic or Latino, Pacific Islander, and others including more than 0.13 million households and 77K families living here. St. Charles forms the county seat while O'Fallon is the largest city of Saint Charles.

Historical facts on origin and birth details, demise facts, real estate and property facts, obituary notice, marriage volume number, last will or probate specifics, war and enlistment data, marriage and divorce details, American Civil War history, civil court case lookups, immigration and naturalization specifics, census data, land and estate data, World War I and II information, burial and cemetery details and the likes with genealogical figures thus fructify the large data site of the Saint Charles County, MO, with much smoothness and ease.