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

Distance from Madison, SD to Altamont, SD

Distance

83 mi

Time

1 hour 38 mins

Gas Cost

$7 - $14

There are 61.29 miles from Madison to Altamont in northeast direction and 83 miles (133.58 kilometers) by car, following the I-29 route.

Madison and Altamont are 1 hour 38 mins far apart, if you drive non-stop .

This is the fastest route from Madison, SD to Altamont, SD. The halfway point is Brookings, SD.

Madison, SD and Altamont, SD are in the same time zone (CDT). Current time in both locations is 5:15 pm.

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Lowest Price Rental Cars in Madison, SD

Planning on renting a car to go from Madison, SD to Altamont, SD? 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 3.33 gallons of gas to cover the route between Madison, SD and Altamont, SD.

The estimated cost of gas to go from Madison to Altamont is $10.30.

During the route, an average car will release 65.14 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 $3.10 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Madison, SD and Altamont, SD

If you want to meet halfway between Madison, SD and Altamont, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.266533 and -96.758842, or 44º 15' 59.5188" N, 96º 45' 31.8312" W. This location is 41.40 miles away from Madison, SD and Altamont, SD and it would take approximately 49 minutes to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Brookings, SD, situated 44 miles from Madison, SD and 43 miles from Altamont, SD. It would take 51 minutes to go from Madison to Brookings and 53 minutes to go from Altamont to Brookings.