How far is Gregory, SD from Harrisburg, SD?
The driving distance from Gregory, SD to Harrisburg, SD is about 157.5 miles (253.4 km), with a travel time of about 02h 50m by car.
- The straight-line flight distance is about 138.1 miles (222.2 km).
- For a round trip, plan for roughly 05h 41m 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 50m.
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.
City in and county seat of Bon Homme County, South Dakota, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Gregory and Harrisburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gregory and Harrisburg.
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1
Start on East 6th Street
34 m · 10 sec · East 6th Street
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2
Turn left onto Main Street
2206 ft · 2 min · Main Street
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3
Turn left
33.3 mi · 41 min
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4
Turn straight
1740 ft · 23 sec
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5
Keep slight left
21.1 mi · 25 min
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6
Continue on SD Highway 46
69.3 mi · 1 hr 32 min · SD Highway 46
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7
Continue on West Main Street
3227 ft · 55 sec · West Main Street
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8
Continue on SD Highway 46
17.5 mi · 26 min · SD Highway 46
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9
Continue on West Cedar Street
2886 ft · 55 sec · West Cedar Street
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10
Take the ramp left
1868 ft · 46 sec
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11
Merge slight left
20.3 mi · 19 min
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12
Take the exit slight right
2036 ft · 52 sec
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13
Turn right onto 276th Street
3.4 mi · 5 min · 276th Street
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14
Turn left onto SD Highway 115
3 mi · 4 min · SD Highway 115
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15
Turn right onto West Willow Street
1.5 mi · 3 min · West Willow Street
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16
Arrive at your destination
0 m · 1 sec · East Willow Street
Car Route Details
A richer read on the saved driving route between Gregory 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.
SD Highway 46
Continue on SD Highway 46
69.3 mi · 01h 32m
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.
Mostly Sunny leaving Gregory and Mostly Sunny near Harrisburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Gregory to Harrisburg?
The road trip is about 157.5 miles (253.4 km) and usually takes 02h 50m 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?
Tyndall is a useful midpoint, sitting about 85.9 miles from Gregory and 71.6 miles from Harrisburg.
How much longer is the road route than the straight-line distance?
The direct path is about 138.1 miles (222.2 km), while the road route adds roughly 19.4 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 12:48 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.97 one way or $41.93 round trip. Estimated CO2 is about 49.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Gregory and Mostly Sunny near Harrisburg.
Flight Path Map
This map shows the direct air route between Gregory and Harrisburg. Straight-line distance: 138.04 mi (222.16 km).
#1 Gregory
City in Gregory County, South Dakota, United States
| Population | 1,250 |
| Coordinates | 43.2322200, -99.4303800 |
| Altitude | 661 |
| 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: 253 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 14m |
| 40 mph (64.37 km/h) | 03h 56m |
| 50 mph (80.47 km/h) | 03h 08m |
| 60 mph (96.56 km/h) | 02h 37m |
| 70 mph (112.65 km/h) | 02h 14m |
| 80 mph (129 km/h) | 01h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $20.97 | $41.93 |
| Mid-grade | $4.25 | $23.65 | $47.29 |
| Premium | $4.65 | $25.88 | $51.75 |
| Diesel | $5.30 | $29.49 | $58.98 |
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.