Website: www.jerseyville-il.us. Jerseyville is a city in Jersey County, Illinois, United States. As of the 2010 U.S. census, the city had a total population of 8,465. It is the county seat of Jersey County, and is the largest city in the county.
well-known. adj. 1. Widely known; familiar or famous: a well-known performer. 2. Fully known: well-known facts.
Popular Terms. Existing everywhere, or seeming to exist everywhere; omnipresent. The term is often used in phrases such as ubiquitous computing, to designate something that seems to have become so popular it can be found anywhere and everywhere. Use 'ubiquitous' in a Sentence.