State Capital: Springfield
Population (2000): 12,419,293
| State Guides | ||
| Illinois | 800-226-6632 | |
| City Guides | ||
| Aurora | 800-477-4369 | |
| Danville | 800-383-4386 | |
| Galena | 877-464-2536 | |
| Lisle | 800-733-9811 | |
| Nauvoo | 877-NAUVOO-1 | |
| Prospect Heights | 800-955-7259 | |
| Rockford | 800-521-0849 | |
| Springfield | 800-545-7300 | |
| St. Charles | 800-777-4373 | |
| County Guides | ||
| DuPage County | 630-575-8070 | |
| Henry County | 309-937-1255 | |
| Kankakee County | 800-74-RIVER | |
| Atractions | ||
| Adler Planetarium & Astronomy Museum | Chicago | 312-922-STAR |
| Navy Pier | Chicago | 312-595-PIER |
| Sears Tower Skydeck | Chicago | 312-875-9696 |