How far is Osceola County, IA from Marion, IA?
The driving distance from Osceola County, IA to Marion, IA is about 285.6 miles (459.7 km), with a travel time of about 04h 45m by car.
- The straight-line flight distance is about 224.5 miles (361.3 km).
- For a round trip, plan for roughly 09h 30m 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 45m.
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 Webster County, Iowa, in the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Osceola County and Marion.
Turn-by-Turn Driving Directions
Step-by-step road directions between Osceola County and Marion.
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1
Start on Silver Avenue
1455 ft · 1 min · Silver Avenue
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2
Turn right onto 190th Street
1.6 km · 4 min · 190th Street
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3
Turn left onto County Highway A30
13 mi · 18 min · County Highway A30
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4
Turn left onto 320th Street
1.6 km · 1 min · 320th Street
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5
Turn right onto Silver Avenue
6 mi · 8 min · Silver Avenue
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6
Continue on North Rerick Avenue
1.6 mi · 3 min · North Rerick Avenue
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7
Continue on Silver Avenue
7.2 mi · 10 min · Silver Avenue
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8
Continue on 470th Street
4.1 mi · 6 min · 470th Street
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9
Turn right onto Tanager Avenue
4 mi · 5 min · Tanager Avenue
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10
Continue on Q Avenue
3.1 mi · 4 min · Q Avenue
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11
Continue on Railroad Street
6.6 mi · 9 min · Railroad Street
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12
Turn left onto State Highway 3
2.7 mi · 4 min · State Highway 3
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13
Turn left onto 530th Street
3.4 mi · 5 min · 530th Street
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14
Turn right onto V Avenue
2 mi · 3 min · V Avenue
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15
Continue on 1st Street
1.4 mi · 2 min · 1st Street
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16
Continue on State Highway 7
2.1 mi · 3 min · State Highway 7
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17
Continue on Highway 7
1.1 mi · 2 min · Highway 7
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18
Turn right onto 20th Avenue
9.2 mi · 13 min · 20th Avenue
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19
Continue on Armstrong Avenue
6 mi · 8 min · Armstrong Avenue
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20
At the end of the road, turn left onto 220th Street
164.9 mi · 3 hr 10 min · 220th Street
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21
Keep slight right to continue on Avenue of the Saints
40.7 mi · 44 min · Avenue of the Saints
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22
Take the exit slight right toward IA 100
1286 ft · 31 sec
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23
Keep slight left
802 ft · 20 sec
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24
Keep slight right to continue on IA 100
1460 ft · 28 sec
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25
Keep slight left to continue on I-380 south, IA 27 south: Iowa City
564 ft · 17 sec
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26
Turn left onto I-380 north, IA 27 north, IA 100 east: Waterloo, Marion
3094 ft · 1 min
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27
Merge slight left onto Collins Road Northeast
1663 ft · 30 sec · Collins Road Northeast
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28
Keep slight right to continue on Collins Road Northeast
1.8 mi · 2 min · Collins Road Northeast
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29
Turn left onto 1st Avenue East
717 ft · 22 sec · 1st Avenue East
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30
Continue on Marion Boulevard
1 km · 1 min · Marion Boulevard
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31
Continue on 7th Avenue
1664 ft · 46 sec · 7th Avenue
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32
Turn left onto 6th Street
96 m · 18 sec · 6th Street
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33
Turn right onto 8th Avenue
1702 ft · 1 min · 8th Avenue
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34
Arrive at your destination
0 m · 1 sec · 8th Avenue
Car Route Details
A richer read on the saved driving route between Osceola County 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
At the end of the road, turn left onto 220th Street
165 mi · 03h 10m
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.
Showers And Thunderstorms Likely leaving Osceola County 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 Osceola County to Marion?
The road trip is about 285.6 miles (459.7 km) and usually takes 04h 45m 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?
Duncombe is a useful midpoint, sitting about 142.8 miles from Osceola County and 142.9 miles from Marion.
How much longer is the road route than the straight-line distance?
The direct path is about 224.5 miles (361.3 km), while the road route adds roughly 61.1 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 7:30 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $42.39 one way or $84.77 round trip. Estimated CO2 is about 89.6 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Osceola County and Showers And Thunderstorms near Marion.
Flight Path Map
This map shows the direct air route between Osceola County and Marion. Straight-line distance: 224.5 mi (361.29 km).
#1 Osceola County
County in Iowa, United States
| Population | 5,987 |
| Coordinates | 43.3785700, -95.6236900 |
| Altitude | 477 |
| 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: 460 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 31m |
| 40 mph (64.37 km/h) | 07h 08m |
| 50 mph (80.47 km/h) | 05h 42m |
| 60 mph (96.56 km/h) | 04h 45m |
| 70 mph (112.65 km/h) | 04h 04m |
| 80 mph (129 km/h) | 03h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.21 | $42.39 | $84.77 |
| Mid-grade | $4.47 | $45.10 | $90.20 |
| Premium | $5.10 | $51.42 | $102.84 |
| Diesel | $6.07 | $61.20 | $122.39 |
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