Casey Historical Society: Located in Casey, Iowa — Not Illinois

The **Casey Historical Society** is **not in Illinois**. It is located in **Casey, Iowa** (Guthrie County), at the corner of **Main Street and Benton Street**.

Casey, IA (pop. ~400) is known for its "World's Largest" roadside attractions (wind chime, golf tee, mailbox, etc.)—a deliberate community tourism strategy. The historical society preserves local history in a small museum setting.

If you're seeking an Illinois historical society, each county typically has one (e.g., Chicago Historical Society / Chicago History Museum; county societies in Cook, DuPage, Lake, etc.).