Distance between cities › USA › South Dakota › Mount Vernon, SD › Distance from Mount Vernon to Roslyn Book Hotels

Distance from Mount Vernon, SD to Roslyn, SD

Distance

168 mi

Time

3 hours 19 mins

Gas Cost

$15 - $29

There are 128.99 miles from Mount Vernon to Roslyn in northeast direction and 168 miles (270.37 kilometers) by car, following the SD 25 route.

Mount Vernon and Roslyn are 3 hours 19 mins far apart, if you drive non-stop .

This is the fastest route from Mount Vernon, SD to Roslyn, SD. The halfway point is Colman, SD.

Mount Vernon, SD and Roslyn, SD are in the same time zone (CDT). Current time in both locations is 8:49 am.

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Lowest Price Rental Cars in Mount Vernon, SD

Planning on renting a car to go from Mount Vernon, SD to Roslyn, SD? Here there are some offers to rent a car in Mount Vernon, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Mount Vernon »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 6.73 gallons of gas to cover the route between Mount Vernon, SD and Roslyn, SD.

The estimated cost of gas to go from Mount Vernon to Roslyn is $21.09.

During the route, an average car will release 131.82 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 $3.14 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Mount Vernon, SD and Roslyn, SD

If you want to meet halfway between Mount Vernon, SD and Roslyn, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.085030 and -96.766304, or 44º 5' 6.108" N, 96º 45' 58.6944" W. This location is 83.77 miles away from Mount Vernon, SD and Roslyn, SD and it would take approximately 1 hour 39 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Colman, SD, situated 107 miles from Mount Vernon, SD and 136 miles from Roslyn, SD. It would take 1 hour 28 mins to go from Mount Vernon to Colman and 2 hours 8 mins to go from Roslyn to Colman.