Distance between cities › USA › South Dakota › Madison, SD › Distance from Madison to Dedham Book Hotels

Distance from Madison, SD to Dedham, IA

Distance

245 mi

Time

4 hours 47 mins

Gas Cost

$22 - $44

There are 185.68 miles from Madison to Dedham in southeast direction and 245 miles (394.29 kilometers) by car, following the I-29 route.

Madison and Dedham are 4 hours 47 mins far apart, if you drive non-stop .

This is the fastest route from Madison, SD to Dedham, IA.

Madison, SD and Dedham, IA are in the same time zone (CDT). Current time in both locations is 11:40 pm.

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Lowest Price Rental Cars in Madison, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Madison »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 9.82 gallons of gas to cover the route between Madison, SD and Dedham, IA.

The estimated cost of gas to go from Madison to Dedham is $31.48.

During the route, an average car will release 192.48 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Madison, SD and Dedham, IA

If you want to meet halfway between Madison, SD and Dedham, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.493077 and -96.465959, or 42º 29' 35.0772" N, 96º 27' 57.4524" W. This location is 122.31 miles away from Madison, SD and Dedham, IA and it would take approximately 2 hours 23 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Dakota Dunes, SD, situated 130 miles from Madison, SD and 119 miles from Dedham, IA. It would take 2 hours 19 mins to go from Madison to Dakota Dunes and 2 hours 39 mins to go from Dedham to Dakota Dunes.