How far is Marion, IA from Johnston, IA?
The driving distance from Marion, IA to Johnston, IA is about 124.5 miles (200.4 km), with a travel time of about 02h 29m by car.
- The straight-line flight distance is about 110.9 miles (178.5 km).
- For a round trip, plan for roughly 04h 59m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 29m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Tama County, Iowa, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Areas Of Frost then Mostly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Marion and Johnston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marion and Johnston.
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1
Start on 8th Avenue
136 m · 23 sec · 8th Avenue
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2
Turn left onto 10th Street
98 m · 13 sec · 10th Street
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3
Turn right onto 7th Avenue
880 ft · 22 sec · 7th Avenue
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4
Enter the roundabout and take exit 2 toward the route
31 m · 4 sec
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5
Exit the roundabout
40 m · 6 sec
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6
Continue on 7th Avenue
1828 ft · 48 sec · 7th Avenue
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7
Continue on Marion Boulevard
1 km · 1 min · Marion Boulevard
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8
Continue on 1st Avenue East
621 ft · 19 sec · 1st Avenue East
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9
Turn right onto Collins Road Northeast
11.2 mi · 13 min · Collins Road Northeast
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10
Take the exit slight right toward US 30 West, US 218 North: Tama, Marshalltown
1.2 km · 1 min
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11
Merge slight left onto 16th Avenue Southwest
2.4 mi · 3 min · 16th Avenue Southwest
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12
Continue on 73rd Street
24.4 mi · 28 min · 73rd Street
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13
Continue on Lincoln Highway
37.3 mi · 43 min · Lincoln Highway
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14
Take the exit slight right toward IA 330: Melbourne, Des Moines
1818 ft · 46 sec
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15
Turn left onto Marshalltown Boulevard
33.7 mi · 40 min · Marshalltown Boulevard
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16
Continue on Northeast Hubbell Avenue
1.1 km · 58 sec · Northeast Hubbell Avenue
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17
Take the exit slight right toward I 80 west, US 65 south: Des Moines
10.6 mi · 13 min
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18
Take the exit slight right toward IA 28 South: Merle Hay Road, Saylorville Lake
1872 ft · 49 sec
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19
Turn right onto Merle Hay Road
1.4 mi · 3 min · Merle Hay Road
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20
Arrive at your destination
0 m · 1 sec · Merle Hay Road
Car Route Details
A richer read on the saved driving route between Marion and Johnston.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Lincoln Highway
Continue on Lincoln Highway
37.3 mi · 00h 43m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Areas Of Frost then Mostly Sunny leaving Marion and Partly Sunny near Johnston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Marion to Johnston?
The road trip is about 124.5 miles (200.4 km) and usually takes 02h 29m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Montour is a useful midpoint, sitting about 62.1 miles from Marion and 62.4 miles from Johnston.
How much longer is the road route than the straight-line distance?
The direct path is about 110.9 miles (178.5 km), while the road route adds roughly 13.6 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 1:30 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.55 one way or $33.11 round trip. Estimated CO2 is about 39 kg one way.
What should you check before leaving?
Before you leave, expect Areas Of Frost then Mostly Sunny around Marion and Partly Sunny near Johnston.
Stop Ideas Near Montour
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Montour.
Ottumwa station
Flight Path Map
This map shows the direct air route between Marion and Johnston. Straight-line distance: 110.91 mi (178.5 km).
#1 Marion
The county seat of Linn County, Iowa.
| Population | 40,780 |
| Coordinates | 42.0341700, -91.5976800 |
| Altitude | 259 |
| Country | United States |
#2 Johnston
City in Iowa, United States
| Population | 23,092 |
| Coordinates | 41.6730400, -93.6977200 |
| Altitude | 253 |
| Country | United States |
End: Johnston (-93.69772, 41.67304)
Estimated Travel Time
Distance: 200 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 08m |
| 40 mph (64.37 km/h) | 03h 06m |
| 50 mph (80.47 km/h) | 02h 29m |
| 60 mph (96.56 km/h) | 02h 04m |
| 70 mph (112.65 km/h) | 01h 46m |
| 80 mph (129 km/h) | 01h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $16.55 | $33.11 |
| Mid-grade | $4.25 | $18.67 | $37.34 |
| Premium | $4.65 | $20.43 | $40.86 |
| Diesel | $5.30 | $23.28 | $46.57 |
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 · May 07, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.