Jefferson County, Illinois

• Mount Vernon@

• Census Bureau QuickFacts: Jefferson County  - Includes the county's geography, business, people, and housing facts.
• Jefferson County Chamber of Commerce  - Covers relocation information, employment opportunities and gives a membership directory.
• Jefferson County Genealogy Trails  - Provides genealogical and historical data including obituaries, cemeteries, biographies, deaths, marriage records, churches, land records, families, photos and history.
• Jefferson County Genealogy: ILGenWeb  - Genealogy research for this county includes anniversaries, births, bible records, deeds, queries and obituary files.