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Jersey County was founded on February 28, 1839, and was formed out of Greene County. The county was named for the state of New Jersey, from which many of the early settlers emigrated - which was itself named for the Channel Island of Jersey in Great Britain. The area quickly evolved into several small agricultural communities. As the area soon began to flourish, a county government was established and a courthouse was built in Jerseyville, the county seat. The present courthouse was built in 1893.

Online since 1996, the mission of Jersey County ILGenWeb is to provide free genealogical and historical resources for our area. Jersey County ILGenWeb is brought to you through the efforts of volunteers. We rely on data contributions from researchers like you. Information presented here (complete or partial) is all that we have. Sadly we have no additional information to provide.

Please submit any articles related to the history of Jersey County and its people. Information should be historical or genealogical in nature and only reference deceased persons. Please include your full name which will be referenced in your contribution, your email address and the source. Recommended contributions can be sent


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Jersey County Genealogy Records

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Jersey County Research

Links to Jersey County Families, Information

Genealogy Links

Links to Jersey's Neighboring Counties

Calhoun          Greene         Madison          Macoupin

GenWeb Links

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ROOTS-L Illinois Surnames, Resources.

Social Security Death Index

This page is "Welcome to Jersey County ILGenWeb" on the Jersey County, Illinois, ILGenWeb site. The address of this page is