Illinois Per Diem Rates (FY2026)
GSA per diem rates for 5 cities and areas in Illinois for fiscal year 2026. Select a location for its lodging cap and M&IE rate. Areas not listed use the GSA standard CONUS rate.
| City / Area | Lodging cap | M&IE |
|---|---|---|
| Bolingbrook / Romeoville / Lemont | $114 | $74 |
| Chicago | $142–$234 | $92 |
| East St. Louis / O'Fallon / Fairview Heights | $150 | $86 |
| Oak Brook Terrace | $115 | $80 |
| Standard Rate | $110 | $68 |