Distance between cities › USA › South Dakota › Chamberlain, SD › Distance from Chamberlain to Williamson Book Hotels

Distance from Chamberlain, SD to Williamson, IA

Distance

468 mi

Time

8 hours 20 mins

Gas Cost

$43 - $83

There are 362.27 miles from Chamberlain to Williamson in southeast direction and 468 miles (753.17 kilometers) by car, following the I-29 route.

Chamberlain and Williamson are 8 hours 20 mins far apart, if you drive non-stop .

This is the fastest route from Chamberlain, SD to Williamson, IA. The halfway point is Sergeant Bluff, IA.

Chamberlain, SD and Williamson, IA are in the same time zone (CDT). Current time in both locations is 6:01 pm.

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Lowest Price Rental Cars in Chamberlain, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Chamberlain »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 18.80 gallons of gas to cover the route between Chamberlain, SD and Williamson, IA.

The estimated cost of gas to go from Chamberlain to Williamson is $60.23.

During the route, an average car will release 368.27 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 Chamberlain, SD and Williamson, IA

If you want to meet halfway between Chamberlain, SD and Williamson, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.386211 and -96.333832, or 42º 23' 10.3596" N, 96º 20' 1.7952" W. This location is 234.02 miles away from Chamberlain, SD and Williamson, IA and it would take approximately 4 hours 10 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Sergeant Bluff, IA, situated 229 miles from Chamberlain, SD and 240 miles from Williamson, IA. It would take 3 hours 4 mins to go from Chamberlain to Sergeant Bluff and 4 hours to go from Williamson to Sergeant Bluff.