2025 will mark the 200^th anniversary of Adams County, Illinois! To honor Adams County’s Bicentennial our goal is to welcome our whole community of residents and create awareness of our history over the last 200 years. Whether you are born and raised in Adams County, a newcomer, boomerang, or moved away, we celebrate with all those who have called Adams County home.

In the coming year the Adams County Bicentennial Commission, alongside community members, aim to create, execute, and support events and activities that celebrate the stories of Adams County people, places, and commemorate our community from creation in 1825 through today.  

In 2025, we look forward to presenting a year-long celebration of the many different aspects of our County’s collective history, while also taking this opportunity to reaffirm the foundations of our future. Throughout the 2025 calendar year, the Bicentennial Commission will invest in education, engage with our community, celebrate all areas of the County, encouraging residents and visitors alike to explore and appreciate our past.

Established on January 13, 1825, Adams County is named after the 6th U.S. President, John Quincy Adams. Adams County, Illinois, was formed in 1825 from the western part of Pike County. It was established along an old military trail that was originally used for military purposes during the early 19th century. This trail was part of a broader network of routes used by settlers, traders, and military personnel as they moved westward, helping to shape the early development of the region. The county’s creation was part of the state’s efforts to organize and expand as new territories were settled.

Below is a map of Illinois in 1821