Jersey County Map
The County of Jersey is located in the State of Illinois. Find directions to Jersey County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Jersey County population is estimated at 21,616 people. The Jersey County time zone is Central Daylight Time which is 6 hours behind Coordinated Universal Time (UTC).
Nearby counties include Calhoun County, Greene County, Macoupin County, Madison County, St. Charles County.
Top cities include Jerseyville, Grafton, Elsah, Fieldon, Otterville