Distance between cities › USA › Illinois › Walnut, IL › Distance from Walnut to Casco Book Hotels

Distance from Walnut, IL to Casco, WI

Distance

300 mi

Time

5 hours 54 mins

Gas Cost

$28 - $54

There are 230.07 miles from Walnut to Casco in northeast direction and 300 miles (482.80 kilometers) by car, following the I-43 and WI-57 route.

Walnut and Casco are 5 hours 54 mins far apart, if you drive non-stop .

This is the fastest route from Walnut, IL to Casco, WI. The halfway point is Sun Prairie, WI.

Walnut, IL and Casco, WI are in the same time zone (CDT). Current time in both locations is 5:09 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Walnut, IL to Casco, WI:

Lowest Price Rental Cars in Walnut, IL

Planning on renting a car to go from Walnut, IL to Casco, WI? Here there are some offers to rent a car in Walnut, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Walnut »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 12.04 gallons of gas to cover the route between Walnut, IL and Casco, WI.

The estimated cost of gas to go from Walnut to Casco is $39.26.

During the route, an average car will release 235.81 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Walnut, IL and Casco, WI

If you want to meet halfway between Walnut, IL and Casco, WI or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.185520 and -89.235420, or 43º 11' 7.872" N, 89º 14' 7.512" W. This location is 149.85 miles away from Walnut, IL and Casco, WI and it would take approximately 2 hours 57 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Sun Prairie, WI, situated 158 miles from Walnut, IL and 149 miles from Casco, WI. It would take 2 hours 43 mins to go from Walnut to Sun Prairie and 2 hours 33 mins to go from Casco to Sun Prairie.

Major City Closest to Halfway Point

The major city closest to the halfway point between Walnut, IL and Casco, WI is Madison, WI, situated 154 miles from Walnut, IL and 162 miles from Casco, WI. It would take 2 hours 42 mins to go from Walnut to and 2 hours 51 mins to go from Casco to Madison.