How far is Dubuque, IA from Le Mars, IA?
The driving distance from Dubuque, IA to Le Mars, IA is about 310.6 miles (499.8 km), with a travel time of about 06h 12m by car.
- The straight-line flight distance is about 280.2 miles (451 km).
- For a round trip, plan for roughly 12h 24m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 12m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Township in Hamilton County, Iowa
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Fog then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Dubuque and Le Mars.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dubuque and Le Mars.
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1
Start on Central Avenue
929 ft · 34 sec · Central Avenue
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2
Take the ramp straight toward US 61 South, US 151 South
1248 ft · 32 sec
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3
Turn right onto Locust Street Conn
1166 ft · 36 sec · Locust Street Conn
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4
Turn right onto Dodge Street
87 mi · 1 hr 43 min · Dodge Street
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5
Keep slight left to continue on Avenue of the Saints
160.2 mi · 3 hr 5 min · Avenue of the Saints
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6
Continue on 160th Street
6.4 mi · 7 min · 160th Street
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7
Continue on United States Highway 20
1.9 mi · 3 min · United States Highway 20
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8
Continue on Highway 20
19 mi · 23 min · Highway 20
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9
Turn right onto Lee Avenue
5.4 mi · 7 min · Lee Avenue
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10
Continue on Shamrock Avenue
2 mi · 3 min · Shamrock Avenue
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11
Turn left onto 320th Street
2 mi · 3 min · 320th Street
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12
Turn right onto State Highway 140
11 mi · 15 min · State Highway 140
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13
Turn left onto C38
2 mi · 3 min · C38
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14
Continue on 210th Street
2 mi · 3 min · 210th Street
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15
Continue on C38
1 mi · 1 min · C38
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16
Turn right onto County Road K64
4 mi · 6 min · County Road K64
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17
Turn left onto State Highway 3
4.7 mi · 6 min · State Highway 3
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18
Continue on Lincoln Street Northeast
1.1 km · 1 min · Lincoln Street Northeast
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19
Continue on 5th Avenue Northeast
617 ft · 18 sec · 5th Avenue Northeast
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20
Turn right onto 1st Street Northeast
1719 ft · 59 sec · 1st Street Northeast
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21
Arrive at your destination
0 m · 1 sec · 1st Street Northeast
Car Route Details
A richer read on the saved driving route between Dubuque and Le Mars.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Avenue of the Saints
Keep slight left to continue on Avenue of the Saints
160 mi · 03h 05m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Patchy Fog then Mostly Sunny leaving Dubuque and Sunny near Le Mars.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dubuque to Le Mars?
The road trip is about 310.6 miles (499.8 km) and usually takes 06h 12m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Blairsburg is a useful midpoint, sitting about 154.9 miles from Dubuque and 155.7 miles from Le Mars.
How much longer is the road route than the straight-line distance?
The direct path is about 280.2 miles (451 km), while the road route adds roughly 30.4 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $41.33 one way or $82.66 round trip. Estimated CO2 is about 97.4 kg one way.
What should you check before leaving?
Before you leave, expect Patchy Fog then Mostly Sunny around Dubuque and Sunny near Le Mars.
Flight Path Map
This map shows the direct air route between Dubuque and Le Mars. Straight-line distance: 280.25 mi (451.02 km).
#1 Dubuque
The most populous city in Dubuque County, Iowa.
| Population | 57,781 |
| Coordinates | 42.5005600, -90.6645700 |
| Altitude | 189 |
| Country | United States |
#2 Le Mars
City in Iowa, United States
| Population | 10,195 |
| Coordinates | 42.7941600, -96.1655800 |
| Altitude | 376 |
| Country | United States |
End: Le Mars (-96.16558, 42.79416)
Estimated Travel Time
Distance: 500 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 20m |
| 40 mph (64.37 km/h) | 07h 45m |
| 50 mph (80.47 km/h) | 06h 12m |
| 60 mph (96.56 km/h) | 05h 10m |
| 70 mph (112.65 km/h) | 04h 26m |
| 80 mph (129 km/h) | 03h 52m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $41.33 | $82.66 |
| Mid-grade | $4.25 | $46.61 | $93.23 |
| Premium | $4.65 | $51.01 | $102.02 |
| Diesel | $5.30 | $58.13 | $116.26 |
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 · Apr 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.