Illinois was part of the French colonial empire, and the city of Cahokia, located near present-day Collinsville, was one of the largest pre-Columbian cities in North America. At its peak, around 1250 CE, Cahokia had a population of around 20,000 people.
Jersey County, located in the state of Illinois, has a rich and diverse history. The area was originally inhabited by Native American tribes, including the Illinois and the Kickapoo. The first European settlers arrived in the late 18th century, and the county was officially established in 1839.

In the early years, agriculture played a significant role in Jersey County's economy. Farmers primarily grew crops such as corn, wheat, and tobacco, which contributed to the growth and prosperity of the region. The county's fertile soil and favorable climate were ideal for farming, which became a major economic driver.

During the mid-19th century, Jersey County experienced significant growth due to the expansion of the railroad systems. The arrival of the Chicago, Burlington and Quincy Railroad, later followed by the Toledo, St. Louis and Kansas City Railroad, facilitated the transportation of goods and people, opening up new markets and opportunities. This led to the establishment of several small towns and communities, such as Jerseyville, Grafton, and Elsah.

Jersey County also played a role in the abolitionist movement, with an active underground railroad network operating in the area. Many residents of Jersey County were involved in assisting enslaved individuals seeking freedom, providing them with shelter and aid along their journey.

In the 20th century, Jersey County continued to grow and develop. The expansion of industry and the modernization of agriculture brought new jobs and economic opportunities to the area. Today, Jersey County remains a vibrant community that celebrates its history while embracing the challenges and opportunities of the present.

This timeline provides a concise overview of the key events in the history of Jersey County, Illinois.

  • 1812: Jersey County is established.
  • 1816: First settlers arrive in the area.
  • 1834: Jerseyville becomes the county seat.
  • 1835: The first school is built in Jersey County.
  • 1839: The Jersey County Democrat newspaper is established.
  • 1851: The first railroad is completed in the county.
  • 1861-1865: Jersey County residents serve in the Civil War.
  • 1871: The Jersey County fair is first held.
  • 1896: A new courthouse is built in Jerseyville.
  • 1930s: The Great Depression brings economic hardships to the county.
  • 1957: The Brussels Ferry over Illinois River is replaced with a bridge.
  • 1980s: The construction of Highway 67 brings economic growth to the county.
  • 1993: Pere Marquette State Park, located in Jersey County, celebrates its 50th anniversary.