Cahokia Courthouse, Western Illinois Travel Guide

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Explore Illinois' oldest courthouse, a French Colonial landmark and Lewis & Clark's former headquarters, in Cahokia Heights.

The Cahokia Courthouse, dating back to the 1740s, stands as Illinois' oldest courthouse and a tangible link to the state's territorial past. Originally a French dwelling, it served as a vital center for political and legal activities and as a headquarters for Lewis and Clark's expedition preparations.

A brief summary to Cahokia Courthouse

107 Elm St, Cahokia Heights, Illinois, 62206, US
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From Eve

Know before you go

Hi, I'm Eve. Here are a few practical things to know before exploring Cahokia Courthouse.

Check the official website for the most up-to-date information on hours, events, and possible closures.
Consider visiting during the annual Fete du Bon Vieux Temps for a unique colonial Mardi Gras celebration.
Take a guided tour to learn more about the courthouse's history and significance.
Explore nearby attractions like the Holy Family Church & Parish Museum to enrich your visit.

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Explore Cahokia Courthouse on the Map

A handpicked selection of must-see spots near Cahokia Courthouse, mapped for you.

Getting There

Public Transport

From various points in the St. Louis metropolitan area, utilize the MetroBus system to reach Cahokia Heights. Several bus routes serve the area, including routes 2, 3, and 8. Check the Metro Transit website or app for the most accurate schedules and route planning. From the nearest bus stop, such as Illinois Route 3 @ 4th Street, it's a short walk to the Cahokia Courthouse. A single ride on MetroBus costs $2 [need confirmation].
Driving

The Cahokia Courthouse is located at 107 Elm St, Cahokia Heights, IL 62206. From major highways, follow signs for Cahokia Heights. Once in Cahokia Heights, navigate to Elm Street. The courthouse has an asphalt parking lot with designated accessible parking spaces. Parking is free. Note that the sidewalks around the courthouse are cobblestone.

Discover more about Cahokia Courthouse

The Cahokia Courthouse State Historic Site offers a unique glimpse into Illinois' early history. Constructed around 1740 as a French residence, the building was converted into a courthouse in 1793, becoming the oldest courthouse in Illinois. Its French Colonial vertical log construction, known as poteaux-sur-solle, showcases the region's rich cultural heritage.For two decades, the courthouse served as a hub for political and legal affairs in the Northwest Territory. Notably, from 1803 to 1804, Lewis and Clark used the courthouse as their headquarters to gather supplies, meet with leaders, collect information, and correspond with President Jefferson in preparation for their expedition.The courthouse has a fascinating history of its own, having been dismantled and moved to St. Louis for the 1904 World's Fair and later to Chicago before being reconstructed on its original Cahokia site in 1939. Today, visitors can explore exhibits depicting court cases from the 1800s and the building's journey through time. The interior features limestone fireplaces, shuttered windows, and French-style doors, offering a vivid sense of Illinois' territorial infancy. Guided tours are available, or visitors can explore the site at their own pace. The site also hosts special events, including the Fete du Bon Vieux Temps and the Old Time Music Fete.