Fast food prices in Mount Vernon, IL

Mount Vernon, IL is the 36th cheapest of 57 Illinois cities we track for fast food (Drive Thru Index 100, level with the national typical price).

11 restaurants, prices as of 2026-10-01. See Mount Vernon on the map

Key findings

• A McDonald's Big Mac typically costs $5.99 in Mount Vernon, IL ($5.99 across 2 restaurants). McDonald's here is 3% below its typical price in the US.
• A Burger King Whopper typically costs $5.99 in Mount Vernon, IL ($5.99 across 1 restaurants). Burger King here is not enough restaurants to compare.
• A Wendy's Dave's Single typically costs $6.19 in Mount Vernon, IL ($6.19 across 1 restaurants). Wendy's here is not enough restaurants to compare.
• A Taco Bell Crunchwrap Supreme typically costs $6.59 in Mount Vernon, IL ($6.59 across 2 restaurants). Taco Bell here is 3% above its typical price in the US.
• A KFC Chicken Sandwich typically costs $5.49 in Mount Vernon, IL ($5.49 across 1 restaurants). KFC here is not enough restaurants to compare.
• A Popeyes Classic Chicken Sandwich typically costs $6.99 in Mount Vernon, IL ($6.99 across 1 restaurants). Popeyes here is not enough restaurants to compare.
• A Culver's ButterBurger Cheese typically costs $4.99 in Mount Vernon, IL ($4.99 across 1 restaurants). Culver's here is not enough restaurants to compare.
• A Sonic Sonic Cheeseburger typically costs $5.79 in Mount Vernon, IL ($5.79 across 1 restaurants). Sonic here is not enough restaurants to compare.
• A Arby's Classic Roast Beef typically costs $4.89 in Mount Vernon, IL ($4.89 across 1 restaurants). Arby's here is not enough restaurants to compare.

Every brand in Mount Vernon

Price history

Drive Thru Index has recorded these prices every day since 30 September 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.

Cheapest and priciest restaurant of each brand

Compared on the same basket of items at each restaurant of the brand. The gap is how much more the priciest charges for that basket.

Every restaurant in Mount Vernon, IL

Each restaurant links to its full menu with prices.

McDonald's

Burger King

Wendy's

Taco Bell

KFC

Popeyes

Culver's

Sonic

Arby's

Nearby in Illinois

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

Questions people ask

How much is a McDonald's Big Mac in Mount Vernon, IL?

As of 2026-10-01, a Big Mac costs $5.99 at 2 McDonald's restaurants in Mount Vernon, IL, typically $5.99.

How much is a Burger King Whopper in Mount Vernon, IL?

As of 2026-10-01, a Whopper costs $5.99 at 1 Burger King restaurants in Mount Vernon, IL, typically $5.99.

How much is a Wendy's Dave's Single in Mount Vernon, IL?

As of 2026-10-01, a Dave's Single costs $6.19 at 1 Wendy's restaurants in Mount Vernon, IL, typically $6.19.

How much is a Taco Bell Crunchwrap Supreme in Mount Vernon, IL?

As of 2026-10-01, a Crunchwrap Supreme costs $6.59 at 2 Taco Bell restaurants in Mount Vernon, IL, typically $6.59.

How much is a KFC Chicken Sandwich in Mount Vernon, IL?

As of 2026-10-01, a Chicken Sandwich costs $5.49 at 1 KFC restaurants in Mount Vernon, IL, typically $5.49.

How much is a Popeyes Classic Chicken Sandwich in Mount Vernon, IL?

As of 2026-10-01, a Classic Chicken Sandwich costs $6.99 at 1 Popeyes restaurants in Mount Vernon, IL, typically $6.99.

How much is a Culver's ButterBurger Cheese in Mount Vernon, IL?

As of 2026-10-01, a ButterBurger Cheese costs $4.99 at 1 Culver's restaurants in Mount Vernon, IL, typically $4.99.

How much is a Sonic Sonic Cheeseburger in Mount Vernon, IL?

As of 2026-10-01, a Sonic Cheeseburger costs $5.79 at 1 Sonic restaurants in Mount Vernon, IL, typically $5.79.

How much is a Arby's Classic Roast Beef in Mount Vernon, IL?

As of 2026-10-01, a Classic Roast Beef costs $4.89 at 1 Arby's restaurants in Mount Vernon, IL, typically $4.89.

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/mount-vernon), prices checked 2026-10-01. You are welcome to quote any figure on this page.