Jersey County is part of the St. Louis Metropolitan Statistical Area.

The hospital was founded in 1954 and is owned by the citizens of Jersey County.

Otterville is an incorporated town in Jersey County, Illinois, United States.

Fieldon is a village in Jersey County, Illinois, United States.

Illinois 109 is a two-lane, undivided surface road in Jersey County for its entire length.

Dow is an unincorporated community in Jersey County, Illinois, United States.

Sheriff of Jersey County, Illinois from 1864 to 1866.

Grafton is the oldest city in Jersey County, Illinois, United States.

Elsah prospered as the main shipping point for the agricultural goods produced by the farmers of Jersey County.

Jerseyville is a city in Jersey County, Illinois, United States.