Distance between cities › USA › South Dakota › Dewey, SD › Distance from Dewey to Jefferson Book Hotels

Distance from Dewey, SD to Jefferson, SD

Distance

504 mi

Time

8 hours 51 mins

Gas Cost

$45 - $88

There are 382.93 miles from Dewey to Jefferson in east direction and 504 miles (811.11 kilometers) by car, following the I-90 and US-14 route.

Dewey and Jefferson are 8 hours 51 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Jefferson, SD.

Please note the time difference between Dewey, SD and Jefferson, SD is 1 hour. The current time in Dewey is 4:30 am and the current time in Jefferson is 5:30 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Jefferson, SD? Here there are some offers to rent a car in Dewey, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Dewey »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 20.25 gallons of gas to cover the route between Dewey, SD and Jefferson, SD.

The estimated cost of gas to go from Dewey to Jefferson is $63.47.

During the route, an average car will release 396.66 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 Dewey, SD and Jefferson, SD

If you want to meet halfway between Dewey, SD and Jefferson, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.91221 and -100.196995, or 43º 54' 43.956" N, 100º 11' 49.182" W. This location is 252.06 miles away from Dewey, SD and Jefferson, SD and it would take approximately 4 hours 25 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Vivian, SD, situated 248 miles from Dewey, SD and 259 miles from Jefferson, SD. It would take 4 hours 49 mins to go from Dewey to Vivian and 4 hours 10 mins to go from Jefferson to Vivian.