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Jersey County is a county located in the state of Illinois. According to the 2010 census, it has a
population of 22,985. Jersey County was
created on February 28, 1839. The county
seat is Jerseyville. The county is named
for the State of New Jersey, from which many early settlers hailed.
Jersey County is included in the St. Louis, MO-IL Metropolitan Statistical Area.
The county is named for the State of New Jersey, from which many early settlers hailed.
County QuickFacts: CensusBureau Quick Facts
Jersey County was created on February 28, 1839 (Laws, 1839, p. 208) and was formed from Greene County. Present area,
or parts of it, formerly included in: Greene County (1821-1839), Madison County (1812-1821) and St. Clair County
The County was named for the State of New Jersey, which derived its name from the Isle of Jersey in Great Britain. The County Seat is Jerseyville (1839-Present).
In 1821, with the establishment of Greene County, it ceased to be a part of Madison County, a relation it had held since the latter was formed by Gov. Edwards in 1818. The part o Greene County that now constitutes Jersey County, continued to be included in Greene Count until August 5, 1839. The Enabling Act passed by the Legislature, February 28, 1839, provided that on August 5, following at an election held for that purpose, a proposition should be submitted to the voters of the latter county, for and against the separation of Jersey County from Greene County, for their determination At that election, there were 1, 239 votes for and 714 against the proposition, a majority of 525 ou of a total of 1, 953 votes. From 1821 until 1839, however, the history of Jersey County is naturall included in that of Greene, and is so given. [Hamilton "History of Jersey Co." 1919]
As reported by the Census Bureau, the county has a total area of 377 square miles (976 km2). 369 square miles (956 km2) of it is land and 8 square miles (20 km2) of it (or 2.08%) is water.
Jersey county is located in southwest Illinois. Jersey County is bordered by the Mississippi River to the south, the Illinois River to the west, and Macoupin Creek to the northwest. Part of Mississippi River State Fish and Wildlife Area is located in this county. Pere Marquette State Park is located in Jersey County.
Bordering counties are as follows: