How far is Porcupine, SD from Madison, SD?
The driving distance from Porcupine, SD to Madison, SD is about 337.5 miles (543.2 km), with a travel time of about 05h 13m by car.
- The straight-line flight distance is about 266.2 miles (428.4 km).
- For a round trip, plan for roughly 10h 26m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
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 05h 13m.
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 Lyman County, South Dakota, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Porcupine and Madison.
Turn-by-Turn Driving Directions
Step-by-step road directions between Porcupine and Madison.
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1
Start on Eagle Drive
9 m · 2 sec · Eagle Drive
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2
Turn right onto Main Street
38 m · 11 sec · Main Street
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3
Turn left onto Big Foot Trail
14.6 mi · 35 min · Big Foot Trail
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4
At the end of the road, turn left
48.1 mi · 57 min
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5
Turn left onto State Highway 73
44.6 mi · 52 min · State Highway 73
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6
Continue on SD Highway 73
1 mi · 2 min · SD Highway 73
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7
Take the ramp right toward I 90 East
2008 ft · 49 sec
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8
Merge slight left
199.1 mi · 3 hr 7 min
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9
Take the exit slight right toward SD 25: Emery, Farmer
1688 ft · 48 sec
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10
Turn left onto SD Highway 25
23.8 mi · 28 min · SD Highway 25
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11
Turn right onto SD Highway 34
26.6 mi · 38 min · SD Highway 34
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12
Continue on Northwest 2nd Street
1.3 mi · 2 min · Northwest 2nd Street
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13
Turn right onto North Egan Avenue
117 m · 13 sec · North Egan Avenue
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14
Arrive at your destination
0 m · 1 sec · North Egan Avenue
Car Route Details
A richer read on the saved driving route between Porcupine and Madison.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 90 East
Merge slight left
199 mi · 03h 07m
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 leaving Porcupine and Rain Showers Likely near Madison.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Porcupine to Madison?
The road trip is about 337.5 miles (543.2 km) and usually takes 05h 13m 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?
Presho is a useful midpoint, sitting about 179.6 miles from Porcupine and 157.9 miles from Madison.
How much longer is the road route than the straight-line distance?
The direct path is about 266.2 miles (428.4 km), while the road route adds roughly 71.3 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 MDT. If you want a more comfortable same-day return, try to leave by 6:34 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $50.42 one way or $100.83 round trip. Estimated CO2 is about 105.8 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Porcupine and Madison, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Rain Showers around Porcupine and Rain Showers Likely near Madison.
Flight Path Map
This map shows the direct air route between Porcupine and Madison. Straight-line distance: 266.21 mi (428.42 km).
#1 Porcupine
Situated on the Pine Ridge Indian Reservation in southwestern South Dakota, this census-designated place lies within Oglala Lakota County at an elevation of 3,192 feet.
| Population | 0 |
| Coordinates | 43.2397100, -102.3309900 |
| Altitude | 973 |
| Country | United States |
#2 Madison
City in Lake County, South Dakota, United States
| Population | 7,064 |
| Coordinates | 44.0060800, -97.1139500 |
| Altitude | 511 |
| Country | United States |
End: 1st Street Northeast (-97.113951, 44.006124)
Estimated Travel Time
Distance: 543 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 14m |
| 40 mph (64.37 km/h) | 08h 26m |
| 50 mph (80.47 km/h) | 06h 44m |
| 60 mph (96.56 km/h) | 05h 37m |
| 70 mph (112.65 km/h) | 04h 49m |
| 80 mph (129 km/h) | 04h 12m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.23 | $50.42 | $100.83 |
| Mid-grade | $4.46 | $53.11 | $106.21 |
| Premium | $5.05 | $60.16 | $120.31 |
| Diesel | $6.01 | $71.56 | $143.11 |
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 · Oct 15, 2026