Distance between cities › USA › South Dakota › Madison, SD › Distance from Madison to Irwin Book Hotels

Distance from Madison, SD to Irwin, ID

Distance

926 mi

Time

17 hours 6 mins

Gas Cost

$85 - $165

There are 708.81 miles from Madison to Irwin in west direction and 926 miles (1,490.25 kilometers) by car, following the I-90 route.

Madison and Irwin are 17 hours 6 mins far apart, if you drive non-stop .

This is the fastest route from Madison, SD to Irwin, ID. The halfway point is Pine Haven, WY.

Please note the time difference between Madison, SD and Irwin, ID is 1 hour. The current time in Madison is 9:55 pm and the current time in Irwin is 8:55 pm.

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Lowest Price Rental Cars in Madison, SD

Planning on renting a car to go from Madison, SD to Irwin, ID? Here there are some offers to rent a car in Madison, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Madison »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 37.18 gallons of gas to cover the route between Madison, SD and Irwin, ID.

The estimated cost of gas to go from Madison to Irwin is $119.13.

During the route, an average car will release 728.45 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Madison, SD and Irwin, ID

If you want to meet halfway between Madison, SD and Irwin, ID or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.282364 and -104.799850, or 44º 16' 56.5104" N, 104º 47' 59.46" W. This location is 462.90 miles away from Madison, SD and Irwin, ID and it would take approximately 8 hours 33 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Pine Haven, WY, situated 452 miles from Madison, SD and 515 miles from Irwin, ID. It would take 6 hours 41 mins to go from Madison to Pine Haven and 9 hours 55 mins to go from Irwin to Pine Haven.