How far is Watertown, SD from Harrisburg, SD?
The driving distance from Watertown, SD to Harrisburg, SD is about 115.3 miles (185.6 km), with a travel time of about 01h 41m by car.
- The straight-line flight distance is about 103.5 miles (166.6 km).
- For a round trip, plan for roughly 03h 22m 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 01h 41m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Township in Brookings County, South Dakota
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Watertown and Harrisburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Watertown and Harrisburg.
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1
Start on South Broadway
885 ft · 31 sec · South Broadway
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2
Turn right onto 1st Avenue Northeast
1.4 mi · 3 min · 1st Avenue Northeast
-
3
Continue on Willow Creek Drive Southeast
1.1 mi · 2 min · Willow Creek Drive Southeast
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4
Turn left onto 9th Avenue Southeast
2518 ft · 50 sec · 9th Avenue Southeast
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5
Take the ramp slight right toward I-29: Brookings
1582 ft · 39 sec
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6
Merge slight left
105.9 mi · 1 hr 42 min
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7
Take the exit slight right
1448 ft · 41 sec
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8
Turn left onto 273rd Street
3.5 mi · 6 min · 273rd Street
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9
Continue on West Willow Street
1.6 mi · 3 min · West Willow Street
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10
Arrive at your destination
0 m · 1 sec · East Willow Street
Car Route Details
A richer read on the saved driving route between Watertown and Harrisburg.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I-29
Merge slight left
106 mi · 01h 42m
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.
Rain Showers Likely leaving Watertown and Showers And Thunderstorms Likely near Harrisburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Watertown to Harrisburg?
The road trip is about 115.3 miles (185.6 km) and usually takes 01h 41m 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?
Medary is a useful midpoint, sitting about 57.4 miles from Watertown and 57.9 miles from Harrisburg.
How much longer is the road route than the straight-line distance?
The direct path is about 103.5 miles (166.6 km), while the road route adds roughly 11.8 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 3:08 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.35 one way or $30.70 round trip. Estimated CO2 is about 36.2 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Watertown and Showers And Thunderstorms Likely near Harrisburg.
Flight Path Map
This map shows the direct air route between Watertown and Harrisburg. Straight-line distance: 103.52 mi (166.6 km).
#1 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 |
#2 Harrisburg
City in South Dakota, United States of America
| Population | 7,126 |
| Coordinates | 43.4313700, -96.6972700 |
| Altitude | 435 |
| Country | United States |
End: Willow Street (-96.697271, 43.431465)
Estimated Travel Time
Distance: 186 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 50m |
| 40 mph (64.37 km/h) | 02h 52m |
| 50 mph (80.47 km/h) | 02h 18m |
| 60 mph (96.56 km/h) | 01h 55m |
| 70 mph (112.65 km/h) | 01h 38m |
| 80 mph (129 km/h) | 01h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $15.35 | $30.70 |
| Mid-grade | $4.25 | $17.31 | $34.62 |
| Premium | $4.65 | $18.94 | $37.88 |
| Diesel | $5.30 | $21.59 | $43.17 |
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 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.