Jack in the Box prices in Illinois
18 Jack in the Box restaurants in Illinois, prices checked 2026-10-03.
Key findings
- A Jack in the Box Jumbo Jack typically costs $5.79 in Illinois ($3.99 to $5.79 across 18 restaurants). Jack in the Box here is 2% below its typical price in the US.
Every Jack in the Box in Illinois, by town
Each restaurant links to its full menu with prices. A town with its own page links to it, where every brand there is compared.
| City | Restaurants | Typical Jumbo Jack | Restaurant |
|---|---|---|---|
| Alton | 2 | $5.79 | 101 Homer M Adams Pkwy · all 2 in Alton |
| Carol Stream | 1 | $3.99 | 441 E Geneva Rd |
| Chicago | 1 | $3.99 | 7807 S Cicero Ave |
| Collinsville | 1 | $5.79 | 9502 Collinsville Rd |
| Countryside | 1 | $3.99 | 5656 S La Grange Rd |
| Glen Carbon | 1 | $5.79 | 31 Junction Dr |
| Granite City | 2 | $5.79 | 2163 Madison Ave · all 2 in Granite City |
| Lake in the Hills | 1 | $3.99 | 320 N Randall Rd |
| Naperville | 1 | $3.99 | 1600 E Ogden Ave |
| New Lenox | 1 | $3.99 | 672 E Lincoln Hwy |
| O Fallon | 1 | $5.79 | 1360 W Us Highway 50 |
| Plainfield | 1 | $3.99 | 2101 Rte 59 |
| Swansea | 1 | $5.79 | 1800 N Illinois St |
| Tinley Park | 1 | $3.99 | 9550 179th St |
| Troy | 1 | $5.79 | 830 Edwardsville Rd |
| Wood River | 1 | $5.79 | 41 E Edwardsville Rd |
More prices
- Jack in the Box prices across the US
- Every brand in Illinois
- McDonald's in Illinois
- Burger King in Illinois
- Wendy's in Illinois
- Taco Bell in Illinois
- KFC in Illinois
- Popeyes in Illinois
- Chick-fil-A in Illinois
- Chipotle in Illinois
- Jersey Mike's in Illinois
- Firehouse Subs in Illinois
- Five Guys in Illinois
- Culver's in Illinois
- Shake Shack in Illinois
- Sonic in Illinois
- Arby's in Illinois
- Dunkin' in Illinois
- Wingstop in Illinois
- Church's Texas Chicken in Illinois
- Hardee's in Illinois
Questions people ask
- How much is a Jack in the Box Jumbo Jack in Illinois?
- As of 2026-10-03, a Jumbo Jack costs $3.99 to $5.79 at 18 Jack in the Box restaurants in Illinois, typically $5.79.
- Where is the cheapest Jack in the Box in Illinois?
- The cheapest Jack in the Box in Illinois is at 320 N Randall Rd, Lake in the Hills, comparing the same basket at 18 restaurants (Drive Thru Index, 2026-10-03).
How these prices are measured
Every day we check the menu at every restaurant of each chain, through the same ordering app its customers use, and record each item's pickup price. Restaurants are compared on a basket of items every full-menu restaurant of that brand sells. An index of 100 is the brand's typical (median) restaurant in the country, so 95 means 5% cheaper and 110 means 10% pricier. Brands are only ever compared with themselves, never with each other.
Citing this data: Source: Drive Thru Index (https://drivethruindex.com/brands/jack-in-the-box/illinois), prices checked 2026-10-03. You are welcome to quote any figure on this page.