Jefferson County is located in the southern part of the U.S. state of Illinois. Founded in the year 1819, the county was named in the honor of Thomas Jefferson, principle draftsman of the Northwest Ordinance. More than 38K 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 reside in this region. The territory accommodates around 15K households and 10K family units. Mount Vernon is its county seat and the largest city.

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