Last week, the possibility of Indiana being added to the order was mention by Chicago Department of Public Health Commissioner Dr. Allison Arwady.
Meanwhile, Kentucky has been added with California and Puerto Rico taken off the list.
States on the travel order are seeing new cases at a rate of greater than 15 per 100,000 per day or higher.
The state of Illinois has now passed the 15 per 100,000 per-day threshold, but travel restrictions will not be put in place for Illinois.
WATCH: Dr. Arwady gives Chicago COVID-19 update
RELATED: Quarantine Travel States: Illinois launches online COVID-19 hotspot map for travelers
The states and territories currently subject to quarantine are:
Travelers from the states are required to quarantine for 14 days. Essential workers are exempt. However, they are asked to limit activities to work activities and monitor for any symptoms.
Violators can be fined $100 - $500 per day, up to a maximum of $7,000.