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Index

Jack in the Box prices in Illinois

18 Jack in the Box restaurants in Illinois, prices checked 2026-10-06.

Key findings

The scoop

Jumbo Jack Prices Vary Across Illinois

The Jumbo Jack runs from $3.99 in Chicago, IL, to $5.79 in Granite City, IL. That is a $1.80 spread across the 18 Jack in the Box restaurants compared.

Illinois Basket Sits Just Below Typical

Jack in the Box’s median basket price is $27.24 across Illinois. That is 1% below the brand’s national typical price.

Illinois Ranks 13th Among States

Illinois ranks 13 of 20 states for Jack in the Box basket prices, where 1 is cheapest. The state’s median basket is $27.24.

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.

CityRestaurantsTypical Jumbo JackRestaurant
Alton2$5.791649 Washington Ave · all 2 in Alton
Carol Stream1$3.99441 E Geneva Rd
Chicago1$3.997807 S Cicero Ave
Collinsville1$5.799502 Collinsville Rd
Countryside1$3.995656 S La Grange Rd
Glen Carbon1$5.7931 Junction Dr
Granite City2$5.793330 Nameoki Rd · all 2 in Granite City
Lake in the Hills1$3.99320 N Randall Rd
Naperville1$3.991600 E Ogden Ave
New Lenox1$3.99672 E Lincoln Hwy
O Fallon1$5.791360 W Us Highway 50
Plainfield1$3.992101 Rte 59
Swansea1$5.791800 N Illinois St
Tinley Park1$3.999550 179th St
Troy1$5.79830 Edwardsville Rd
Wood River1$5.7941 E Edwardsville Rd

More prices

Questions people ask

How much is a Jack in the Box Jumbo Jack in Illinois?
As of 2026-10-06, 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 2101 Rte 59, Plainfield, comparing the same basket at 17 restaurants (Drive Thru Index, 2026-10-06).

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 2026-10-06. You are welcome to quote any figure on this page.

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