Fast food prices in Rock Falls, IL

Prices at 6 fast food restaurants in Rock Falls, IL.

6 restaurants, prices as of 2026-10-03. See Rock Falls on the map

Key findings

• A McDonald's Big Mac typically costs $5.19 in Rock Falls, IL ($5.19 across 1 restaurants). McDonald's here is not enough restaurants to compare.
• A Burger King Whopper typically costs $6.49 in Rock Falls, IL ($6.49 across 1 restaurants). Burger King here is not enough restaurants to compare.
• A Culver's ButterBurger Cheese typically costs $4.79 in Rock Falls, IL ($4.79 across 1 restaurants). Culver's here is not enough restaurants to compare.
• A Arby's Classic Roast Beef typically costs $5.49 in Rock Falls, IL ($5.49 across 1 restaurants). Arby's here is not enough restaurants to compare.
• A Dunkin' Medium Original Blend typically costs $3.19 in Rock Falls, IL ($3.19 across 1 restaurants). Dunkin' here is not enough restaurants to compare.

Every brand in Rock Falls

Price history

Drive Thru Index has recorded these prices every day since 2 October 2026. Each figure is the typical (median) price across the brand's restaurants here on that day. Comparisons with earlier dates appear here as the daily record builds up.

Every restaurant in Rock Falls, IL

Each restaurant links to its full menu with prices.

McDonald's

Burger King

Culver's

Arby's

Dunkin'

Hardee's

Nearby in Illinois

• Chicago
• Aurora
• Rockford
• Naperville
• Springfield
• Joliet
• Peoria
• Elgin
• Champaign
• Schaumburg
• Waukegan
• Decatur

Questions people ask

How much is a McDonald's Big Mac in Rock Falls, IL?

As of 2026-10-03, a Big Mac costs $5.19 at 1 McDonald's restaurants in Rock Falls, IL, typically $5.19.

How much is a Burger King Whopper in Rock Falls, IL?

As of 2026-10-03, a Whopper costs $6.49 at 1 Burger King restaurants in Rock Falls, IL, typically $6.49.

How much is a Culver's ButterBurger Cheese in Rock Falls, IL?

As of 2026-10-03, a ButterBurger Cheese costs $4.79 at 1 Culver's restaurants in Rock Falls, IL, typically $4.79.

How much is a Arby's Classic Roast Beef in Rock Falls, IL?

As of 2026-10-03, a Classic Roast Beef costs $5.49 at 1 Arby's restaurants in Rock Falls, IL, typically $5.49.

How much is a Dunkin' Medium Original Blend in Rock Falls, IL?

As of 2026-10-03, a Medium Original Blend costs $3.19 at 1 Dunkin' restaurants in Rock Falls, IL, typically $3.19.

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/prices/illinois/rock-falls), prices checked 2026-10-03. You are welcome to quote any figure on this page.