How far is Sioux Center, IA from Duncombe, IA?
The driving distance from Sioux Center, IA to Duncombe, IA is about 155 miles (249.5 km), with a travel time of about 03h 17m by car.
- The straight-line flight distance is about 118.4 miles (190.5 km).
- For a round trip, plan for roughly 06h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CST.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 17m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Ida County, Iowa, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Driving Route Map
The map below follows the saved road route between Sioux Center and Duncombe.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sioux Center and Duncombe.
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1
Start on North Main Avenue
5.7 mi · 9 min · North Main Avenue
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2
Turn left onto 450th Street
5 mi · 7 min · 450th Street
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3
Continue on Highway 10 West
2721 ft · 58 sec · Highway 10 West
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4
Continue on 8th Street Southwest
1.2 km · 2 min · 8th Street Southwest
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5
Continue on 450th Street
1.2 km · 1 min · 450th Street
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6
Enter the roundabout and take exit 2 toward 450th Street
24 m · 5 sec · 450th Street
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7
Exit the roundabout onto 450th Street
2 mi · 3 min · 450th Street
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8
Turn right onto Kennedy Avenue
1.4 km · 1 min · Kennedy Avenue
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9
Continue on State Highway 10
1587 ft · 25 sec · State Highway 10
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10
Continue on 460th Street
1.8 mi · 2 min · 460th Street
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11
Turn right onto Kiwi Avenue
5 mi · 7 min · Kiwi Avenue
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12
Continue on County Road L14
7 mi · 10 min · County Road L14
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13
Continue on State Highway 140
15.1 mi · 21 min · State Highway 140
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14
Turn left onto 320th Street
2 mi · 3 min · 320th Street
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15
Turn right onto Shamrock Avenue
2 mi · 3 min · Shamrock Avenue
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16
Continue on Lee Avenue
5.4 mi · 8 min · Lee Avenue
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17
Turn left onto Highway 20
19 mi · 23 min · Highway 20
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18
Continue on United States Highway 20
8.3 mi · 10 min · United States Highway 20
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19
Continue on 220th Street
71.2 mi · 1 hr 22 min · 220th Street
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20
Turn left onto County Highway P73
1.8 mi · 3 min · County Highway P73
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21
Continue on Walnut Street
1607 ft · 37 sec · Walnut Street
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22
Turn left onto Warren Street
753 ft · 35 sec · Warren Street
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23
Turn right onto Cedar Street
49 m · 12 sec · Cedar Street
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24
Turn left
16 m · 4 sec
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25
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Sioux Center and Duncombe.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
220th Street
Continue on 220th Street
71.2 mi · 01h 22m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Partly Sunny leaving Sioux Center and Sunny near Duncombe.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sioux Center to Duncombe?
The road trip is about 155 miles (249.5 km) and usually takes 03h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Galva is a useful midpoint, sitting about 77.4 miles from Sioux Center and 77.7 miles from Duncombe.
How much longer is the road route than the straight-line distance?
The direct path is about 118.4 miles (190.5 km), while the road route adds roughly 36.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CST. If you want a more comfortable same-day return, try to leave by 10:24 AM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.54 one way or $43.08 round trip. Estimated CO2 is about 48.6 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Sioux Center and Sunny near Duncombe.
Flight Path Map
This map shows the direct air route between Sioux Center and Duncombe. Straight-line distance: 118.4 mi (190.54 km).
#1 Sioux Center
City in Sioux County, Iowa, United States of America
| Population | 7,665 |
| Coordinates | 43.0797100, -96.1755800 |
| Altitude | 446 |
| Country | United States |
#2 Duncombe
City in Webster County, Iowa, in the United States
| Population | 386 |
| Coordinates | 42.4705300, -93.9935600 |
| Altitude | 338 |
| Country | United States |
End: Duncombe (-93.99356, 42.47053)
Estimated Travel Time
Distance: 250 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 09m |
| 40 mph (64.37 km/h) | 03h 52m |
| 50 mph (80.47 km/h) | 03h 06m |
| 60 mph (96.56 km/h) | 02h 35m |
| 70 mph (112.65 km/h) | 02h 12m |
| 80 mph (129 km/h) | 01h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.94 | $21.54 | $43.08 |
| Mid-grade | $4.28 | $23.40 | $46.79 |
| Premium | $4.84 | $26.46 | $52.92 |
| Diesel | $6.01 | $32.87 | $65.75 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Iowa · Nov 06, 2026