Decatur trip planner
Create a fully customized
day-by-day itinerary for free
Decatur is the largest city and the county seat of Macon County in the U.S. state of Illinois. The city was founded in 1829 and is along the Sangamon River and Lake Decatur in Central Illinois. In 2015, the city's estimated population was 73,254.The city is home of private Millikin University and public Richland Community College. Decatur has vast industrial and agricultural processing production, including the North American headquarters of agricultural conglomerate Archer Daniels Midland, international agribusiness Tate & Lyle's largest corn-processing plant, and the designing and manufacturing facilities for Caterpillar Inc.'s wheel-tractor scrapers, off-highway trucks, and large mining trucks.GeographyDecatur is located at . Decatur is three hours southwest of Chicago, 40 miles due east of Springfield, the state capital, and two hours northeast of St. Louis by car.According to the 2010 census, Decatur has an area of 46.91sqmi, of which 42.22sqmi is land and 4.69sqmi is water. Lakes include Lake Decatur, formed in 1923 by the damming of the Sangamon River.Decatur is in Illinois (IL). Take the guesswork out of planning a United States vacation by using our trip itinerary maker.
Create a full itinerary — for free!
Plan your trip to Decatur
Get a personalized planA complete day-by-day itinerary
based on your preferences
Customize itRefine your plan. We'll find the
best routes and schedules
Manage itEverything in one place.
Everyone on the same page.
Popular things to do in Decatur
Side trips from Decatur
Places to visit with Decatur
Recently planned trips to Decatur
1 day in Decatur BY A USER FROM UNITED STATES July, popular sights PREFERENCES: July ATTRACTION STYLE: Popular sights PACE: Medium 3 days in Decatur, Springfield & Saint Louis BY A USER FROM UNITED STATES April, kids, culture, outdoors, historic sites, museums, wildlife, popular sights PREFERENCES: April, kids, culture, outdoors, historic sites, museums, wildlife ATTRACTION STYLE: Popular sights PACE: Medium 4 days in Decatur BY A USER FROM UNITED STATES March, popular sights PREFERENCES: March ATTRACTION STYLE: Popular sights PACE: Medium 7 days in Illinois BY A USER FROM UNITED STATES April, kids, popular & hidden gems PREFERENCES: April, kids ATTRACTION STYLE: Popular & hidden gems PACE: Medium 5 days in Decatur & Chicago BY A USER FROM UNITED STATES January, kids, popular sights PREFERENCES: January, kids ATTRACTION STYLE: Popular sights PACE: Medium 6 days in Decatur, Lexington & Mammoth Cave National Park BY A USER FROM UNITED STATES August, kids, popular & hidden gems PREFERENCES: August, kids ATTRACTION STYLE: Popular & hidden gems PACE: Medium