How far is Sioux Center, IA from Marion, IA?
The driving distance from Sioux Center, IA to Marion, IA is about 295.6 miles (475.7 km), with a travel time of about 04h 46m by car.
- The straight-line flight distance is about 243.9 miles (392.5 km).
- For a round trip, plan for roughly 09h 33m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
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 04h 46m.
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.
Human settlement in Webster County, Iowa, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sioux Center and Marion.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sioux Center and Marion.
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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
165.9 mi · 3 hr 11 min · 220th Street
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20
Keep slight right to continue on Avenue of the Saints
40.7 mi · 44 min · Avenue of the Saints
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21
Take the exit slight right toward IA 100
1286 ft · 31 sec
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22
Keep slight left
802 ft · 20 sec
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23
Keep slight right to continue on IA 100
1460 ft · 28 sec
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24
Keep slight left to continue on I-380 south, IA 27 south: Iowa City
564 ft · 17 sec
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25
Turn left onto I-380 north, IA 27 north, IA 100 east: Waterloo, Marion
3094 ft · 1 min
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26
Merge slight left onto Collins Road Northeast
1663 ft · 30 sec · Collins Road Northeast
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27
Keep slight right to continue on Collins Road Northeast
1.8 mi · 2 min · Collins Road Northeast
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28
Turn left onto 1st Avenue East
717 ft · 22 sec · 1st Avenue East
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29
Continue on Marion Boulevard
1 km · 1 min · Marion Boulevard
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30
Continue on 7th Avenue
1664 ft · 46 sec · 7th Avenue
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31
Turn left onto 6th Street
96 m · 18 sec · 6th Street
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32
Turn right onto 8th Avenue
1702 ft · 1 min · 8th Avenue
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33
Arrive at your destination
0 m · 1 sec · 8th Avenue
Car Route Details
A richer read on the saved driving route between Sioux Center and Marion.
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
166 mi · 03h 11m
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.
Rain Showers leaving Sioux Center and Showers And Thunderstorms near Marion.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sioux Center to Marion?
The road trip is about 295.6 miles (475.7 km) and usually takes 04h 46m 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?
Otho is a useful midpoint, sitting about 146.2 miles from Sioux Center and 149.3 miles from Marion.
How much longer is the road route than the straight-line distance?
The direct path is about 243.9 miles (392.5 km), while the road route adds roughly 51.7 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 CDT. If you want a more comfortable same-day return, try to leave by 7:26 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.86 one way or $87.72 round trip. Estimated CO2 is about 92.7 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Sioux Center and Showers And Thunderstorms near Marion.
Flight Path Map
This map shows the direct air route between Sioux Center and Marion. Straight-line distance: 243.89 mi (392.51 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 Marion
The county seat of Linn County, Iowa.
| Population | 40,780 |
| Coordinates | 42.0341700, -91.5976800 |
| Altitude | 259 |
| Country | United States |
End: 8th Avenue (-91.59768, 42.03419)
Estimated Travel Time
Distance: 476 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 50m |
| 40 mph (64.37 km/h) | 07h 23m |
| 50 mph (80.47 km/h) | 05h 54m |
| 60 mph (96.56 km/h) | 04h 55m |
| 70 mph (112.65 km/h) | 04h 13m |
| 80 mph (129 km/h) | 03h 41m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.21 | $43.86 | $87.72 |
| Mid-grade | $4.47 | $46.66 | $93.33 |
| Premium | $5.10 | $53.20 | $106.41 |
| Diesel | $6.07 | $63.32 | $126.64 |
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 · Oct 15, 2026