Distance between cities › USA › South Dakota › Iona, SD › Distance from Iona to Eureka Book Hotels

Distance from Iona, SD to Eureka, KS

Distance

525 mi

Time

10 hours 30 mins

Gas Cost

$49 - $95

There are 430.82 miles from Iona to Eureka in southeast direction and 525 miles (844.91 kilometers) by car, following the US-81 route.

Iona and Eureka are 10 hours 30 mins far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Eureka, KS. The halfway point is McCool Junction, NE.

Iona, SD and Eureka, KS are in the same time zone (CDT). Current time in both locations is 1:04 pm.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to Eureka, KS? Here there are some offers to rent a car in Iona, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Iona »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 21.10 gallons of gas to cover the route between Iona, SD and Eureka, KS.

The estimated cost of gas to go from Iona to Eureka is $68.83.

During the route, an average car will release 413.42 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 Iona, SD and Eureka, KS

If you want to meet halfway between Iona, SD and Eureka, KS or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.710869 and -97.585945, or 40º 42' 39.1284" N, 97º 35' 9.402" W. This location is 262.71 miles away from Iona, SD and Eureka, KS and it would take approximately 5 hours 15 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is McCool Junction, NE, situated 259 miles from Iona, SD and 267 miles from Eureka, KS. It would take 4 hours 47 mins to go from Iona to McCool Junction and 4 hours 15 mins to go from Eureka to McCool Junction.