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

Distance from Harrison, SD to Blockton, IA

Distance

371 mi

Time

7 hours 43 mins

Gas Cost

$35 - $67

There are 284.58 miles from Harrison to Blockton in southeast direction and 371 miles (597.07 kilometers) by car, following the I-29 route.

Harrison and Blockton are 7 hours 43 mins far apart, if you drive non-stop .

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

Harrison, SD and Blockton, IA are in the same time zone (CDT). Current time in both locations is 4:43 am.

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Lowest Price Rental Cars in Harrison, SD

Planning on renting a car to go from Harrison, SD to Blockton, 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 14.91 gallons of gas to cover the route between Harrison, SD and Blockton, IA.

The estimated cost of gas to go from Harrison to Blockton is $48.63.

During the route, an average car will release 292.08 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 Blockton, IA

If you want to meet halfway between Harrison, SD and Blockton, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.216196 and -96.241146, or 42º 12' 58.3056" N, 96º 14' 28.1256" W. This location is 185.61 miles away from Harrison, SD and Blockton, IA and it would take approximately 3 hours 51 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Sloan, IA, situated 181 miles from Harrison, SD and 193 miles from Blockton, IA. It would take 3 hours 44 mins to go from Harrison to Sloan and 4 hours 6 mins to go from Blockton to Sloan.