How far is Davenport, IA from Johnston, IA?
The driving distance from Davenport, IA to Johnston, IA is about 168.3 miles (270.8 km), with a travel time of about 03h 11m by car.
- The straight-line flight distance is about 161.6 miles (260 km).
- For a round trip, plan for roughly 06h 22m 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 03h 11m.
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 Iowa County, Iowa, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Partly Sunny
Driving Route Map
The map below follows the saved road route between Davenport and Johnston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Davenport and Johnston.
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1
Start on West 4th Street
1.1 km · 2 min · West 4th Street
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2
Turn right onto Marquette Street
1 mi · 2 min · Marquette Street
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3
Turn left onto West Locust Street
2659 ft · 1 min · West Locust Street
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4
Turn slight right onto Hickory Grove Road
2.5 mi · 5 min · Hickory Grove Road
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5
At the end of the road, turn left onto West Kimberly Road
2.9 mi · 4 min · West Kimberly Road
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6
Take the ramp right
64.9 mi · 1 hr 11 min
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7
Continue straight
94.1 mi · 1 hr 42 min
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8
Take the exit slight right toward IA 28 South: Merle Hay Road, Saylorville Lake
1872 ft · 49 sec
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9
Turn right onto Merle Hay Road
1.4 mi · 3 min · Merle Hay Road
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10
Arrive at your destination
0 m · 1 sec · Merle Hay Road
Car Route Details
A richer read on the saved driving route between Davenport and Johnston.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
West Kimberly Road
Continue straight
94.1 mi · 01h 42m
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.
Chance Showers And Thunderstorms leaving Davenport 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 Davenport to Johnston?
The road trip is about 168.3 miles (270.8 km) and usually takes 03h 11m 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?
Ladora is a useful midpoint, sitting about 83.9 miles from Davenport and 84.3 miles from Johnston.
How much longer is the road route than the straight-line distance?
The direct path is about 161.6 miles (260 km), while the road route adds roughly 6.7 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 10:38 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.40 one way or $44.80 round trip. Estimated CO2 is about 52.8 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Davenport and Partly Sunny near Johnston.
Stop Ideas Near Ladora
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 Ladora.
Ottumwa station
Mount Pleasant
Flight Path Map
This map shows the direct air route between Davenport and Johnston. Straight-line distance: 161.53 mi (259.96 km).
#1 Davenport
The most populous city in Scott County, Iowa.
| Population | 101,799 |
| Coordinates | 41.5236400, -90.5776400 |
| Altitude | 180 |
| 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: 271 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 36m |
| 40 mph (64.37 km/h) | 04h 12m |
| 50 mph (80.47 km/h) | 03h 21m |
| 60 mph (96.56 km/h) | 02h 48m |
| 70 mph (112.65 km/h) | 02h 24m |
| 80 mph (129 km/h) | 02h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $22.40 | $44.80 |
| Mid-grade | $4.25 | $25.26 | $50.53 |
| Premium | $4.65 | $27.64 | $55.29 |
| Diesel | $5.30 | $31.51 | $63.01 |
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.