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

Distance from Mount Vernon, SD to Geronimo, OK

Distance

744 mi

Time

13 hours 26 mins

Gas Cost

$69 - $135

There are 637.72 miles from Mount Vernon to Geronimo in south direction and 744 miles (1,197.35 kilometers) by car, following the US-81 route.

Mount Vernon and Geronimo are 13 hours 26 mins far apart, if you drive non-stop .

This is the fastest route from Mount Vernon, SD to Geronimo, OK.

Mount Vernon, SD and Geronimo, OK are in the same time zone (CDT). Current time in both locations is 6:44 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 Geronimo, OK? 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 29.88 gallons of gas to cover the route between Mount Vernon, SD and Geronimo, OK.

The estimated cost of gas to go from Mount Vernon to Geronimo is $97.47.

During the route, an average car will release 585.44 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 Mount Vernon, SD and Geronimo, OK

If you want to meet halfway between Mount Vernon, SD and Geronimo, OK or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.328457 and -97.66712, or 39º 19' 42.4452" N, 97º 40' 1.632" W. This location is 372.02 miles away from Mount Vernon, SD and Geronimo, OK and it would take approximately 6 hours 43 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Delphos, KS, situated 376 miles from Mount Vernon, SD and 379 miles from Geronimo, OK. It would take 7 hours 5 mins to go from Mount Vernon to Delphos and 6 hours 42 mins to go from Geronimo to Delphos.