Distance between cities › USA › South Dakota › Harrison, SD › Distance from Harrison to Grant Book Hotels

Distance from Harrison, SD to Grant, IA

Distance

308 mi

Time

6 hours 11 mins

Gas Cost

$29 - $56

There are 240.28 miles from Harrison to Grant in southeast direction and 308 miles (495.68 kilometers) by car, following the I-29 route.

Harrison and Grant are 6 hours 11 mins far apart, if you drive non-stop .

This is the fastest route from Harrison, SD to Grant, IA.

Harrison, SD and Grant, IA are in the same time zone (CDT). Current time in both locations is 6:25 am.

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Lowest Price Rental Cars in Harrison, SD

Planning on renting a car to go from Harrison, SD to Grant, IA? Here there are some offers to rent a car in Harrison, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Harrison »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 12.35 gallons of gas to cover the route between Harrison, SD and Grant, IA.

The estimated cost of gas to go from Harrison to Grant is $40.30.

During the route, an average car will release 242.05 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 Harrison, SD and Grant, IA

If you want to meet halfway between Harrison, SD and Grant, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.582825 and -96.546312, or 42º 34' 58.17" N, 96º 32' 46.7232" W. This location is 153.81 miles away from Harrison, SD and Grant, IA and it would take approximately 3 hours 5 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Jefferson, SD, situated 147 miles from Harrison, SD and 163 miles from Grant, IA. It would take 3 hours 6 mins to go from Harrison to Jefferson and 3 hours 9 mins to go from Grant to Jefferson.