How far is Johnston, IA from Marion, IA?
The driving distance from Johnston, IA to Marion, IA is about 124.6 miles (200.5 km), with a travel time of about 02h 07m by car.
- The straight-line flight distance is about 110.9 miles (178.5 km).
- For a round trip, plan for roughly 04h 14m 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 07m.
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.
Partly Sunny
Areas Of Frost then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Johnston and Marion.
Turn-by-Turn Driving Directions
Step-by-step road directions between Johnston and Marion.
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1
Start on Merle Hay Road
1.5 mi · 3 min · Merle Hay Road
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2
Turn left onto I-35 north, I-80 east
1746 ft · 43 sec
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3
Merge slight left
4 mi · 5 min
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4
Continue straight
1.2 km · 51 sec
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5
Continue straight
3105 ft · 41 sec
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6
Keep slight left
4.5 mi · 5 min
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7
Take the exit slight right toward US 6 West, US 65 North, IA 330 North: Marshalltown, Bondurant
2428 ft · 1 min
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8
Turn left onto Northeast Hubbell Avenue
1.2 mi · 2 min · Northeast Hubbell Avenue
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9
Continue on Northeast Hubbell Road
33.5 mi · 39 min · Northeast Hubbell Road
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10
Take the exit right
2792 ft · 1 min
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11
Merge slight left onto Lincoln Highway
37 mi · 43 min · Lincoln Highway
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12
Continue on 73rd Street
26.8 mi · 31 min · 73rd Street
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13
Take the exit slight right toward IA 100 East: Cedar Rapids, Marion
1.6 km · 2 min
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14
Continue straight
9.4 mi · 11 min
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15
Keep slight right to continue on Collins Road Northeast
1.8 mi · 2 min · Collins Road Northeast
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16
Turn left onto 1st Avenue East
717 ft · 22 sec · 1st Avenue East
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17
Continue on Marion Boulevard
1 km · 1 min · Marion Boulevard
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18
Continue on 7th Avenue
1664 ft · 46 sec · 7th Avenue
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19
Turn left onto 6th Street
96 m · 18 sec · 6th Street
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20
Turn right onto 8th Avenue
1702 ft · 1 min · 8th Avenue
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21
Arrive at your destination
0 m · 1 sec · 8th Avenue
Car Route Details
A richer read on the saved driving route between Johnston and Marion.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Lincoln Highway
Merge slight left onto Lincoln Highway
37 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.
Partly Sunny leaving Johnston and Areas Of Frost then Mostly Sunny near Marion.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Johnston to Marion?
The road trip is about 124.6 miles (200.5 km) and usually takes 02h 07m 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 62.3 miles from Johnston and 62.4 miles from Marion.
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 13.7 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:16 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.59 one way or $33.18 round trip. Estimated CO2 is about 39.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Johnston and Areas Of Frost then Mostly Sunny near Marion.
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 Johnston and Marion. Straight-line distance: 110.91 mi (178.5 km).
#1 Johnston
City in Iowa, United States
| Population | 23,092 |
| Coordinates | 41.6730400, -93.6977200 |
| Altitude | 253 |
| 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: 201 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 09m |
| 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 | $16.59 | $33.18 |
| Mid-grade | $4.25 | $18.71 | $37.43 |
| Premium | $4.65 | $20.48 | $40.96 |
| Diesel | $5.30 | $23.34 | $46.68 |
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.