How far is Mobridge, SD from Watertown, SD?
The driving distance from Mobridge, SD to Watertown, SD is about 196.8 miles (316.7 km), with a travel time of about 03h 18m by car.
- The straight-line flight distance is about 167.1 miles (269 km).
- For a round trip, plan for roughly 06h 36m 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 18m.
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 and the county seat of Brown County, South Dakota, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Mobridge and Watertown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mobridge and Watertown.
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1
Start on 4th Avenue East
22 m · 5 sec · 4th Avenue East
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2
Turn right onto East Grand Crossing
1 mi · 1 min · East Grand Crossing
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3
Continue on US Highway 12
18.5 mi · 21 min · US Highway 12
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4
Continue on Highway 12 & 83
1.5 km · 1 min · Highway 12 & 83
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5
Continue on US Highway 12
17.8 mi · 20 min · US Highway 12
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6
Continue straight
35.3 mi · 40 min
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7
Continue straight
76.7 mi · 1 hr 34 min
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8
Turn right onto Main Street
1.1 mi · 1 min · Main Street
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9
Continue on SD Highway 25
16.2 mi · 19 min · SD Highway 25
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10
Turn left onto SD Highway 20
21.5 mi · 25 min · SD Highway 20
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11
Continue on North Highway 20
4.4 mi · 7 min · North Highway 20
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12
Continue on 10th Street Northwest
1.1 km · 1 min · 10th Street Northwest
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13
Turn left onto West Kemp Avenue
2673 ft · 56 sec · West Kemp Avenue
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14
Continue on West Kemp Avenue
1844 ft · 55 sec · West Kemp Avenue
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15
Turn right onto South Broadway
123 m · 11 sec · South Broadway
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16
Arrive at your destination
0 m · 1 sec · South Broadway
Car Route Details
A richer read on the saved driving route between Mobridge and Watertown.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US Highway 12
Continue straight
76.7 mi · 01h 34m
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.
Rain Showers Likely leaving Mobridge and Chance Rain Showers near Watertown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mobridge to Watertown?
The road trip is about 196.8 miles (316.7 km) and usually takes 03h 18m 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?
Aberdeen is a useful midpoint, sitting about 97.4 miles from Mobridge and 99.4 miles from Watertown.
How much longer is the road route than the straight-line distance?
The direct path is about 167.1 miles (269 km), while the road route adds roughly 29.7 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 10:24 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.21 one way or $52.42 round trip. Estimated CO2 is about 61.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Mobridge and Chance Rain Showers near Watertown.
Flight Path Map
This map shows the direct air route between Mobridge and Watertown. Straight-line distance: 167.14 mi (268.98 km).
#1 Mobridge
City in South Dakota, United States of America
| Population | 3,373 |
| Coordinates | 45.5372200, -100.4279100 |
| Altitude | 506 |
| Country | United States |
#2 Watertown
City in and county seat of Codington County, South Dakota, United States
| Population | 22,303 |
| Coordinates | 44.8994100, -97.1150700 |
| Altitude | 528 |
| Country | United States |
End: South Broadway (-97.115008, 44.899398)
Estimated Travel Time
Distance: 317 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 33m |
| 40 mph (64.37 km/h) | 04h 55m |
| 50 mph (80.47 km/h) | 03h 56m |
| 60 mph (96.56 km/h) | 03h 16m |
| 70 mph (112.65 km/h) | 02h 48m |
| 80 mph (129 km/h) | 02h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $26.21 | $52.42 |
| Mid-grade | $4.25 | $29.56 | $59.12 |
| Premium | $4.65 | $32.35 | $64.69 |
| Diesel | $5.30 | $36.86 | $73.73 |
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 South Dakota · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.