How far is Mason City, IA from Sergeant Bluff, IA?
The driving distance from Mason City, IA to Sergeant Bluff, IA is about 207.8 miles (334.5 km), with a travel time of about 04h 07m by car.
- The straight-line flight distance is about 168.3 miles (270.8 km).
- For a round trip, plan for roughly 08h 14m 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 04h 07m.
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 Iowa, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Mason City and Sergeant Bluff.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mason City and Sergeant Bluff.
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1
Start on 2nd Street Northeast
7 m · 6 sec · 2nd Street Northeast
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2
Turn left onto North Federal Avenue
100 m · 17 sec · North Federal Avenue
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3
Turn right onto 1st Street Northwest
2017 ft · 48 sec · 1st Street Northwest
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4
Turn left onto North Monroe Avenue
1.3 mi · 3 min · North Monroe Avenue
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5
Turn right onto 19th Street Southwest
2.5 mi · 4 min · 19th Street Southwest
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6
Turn left onto South Eisenhower Avenue
2624 ft · 41 sec · South Eisenhower Avenue
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7
Continue on Mallard Avenue
1.4 mi · 2 min · Mallard Avenue
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8
Take the ramp right
2217 ft · 54 sec
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9
Merge slight left onto Avenue of the Saints
3.5 mi · 4 min · Avenue of the Saints
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10
Take the exit slight left toward I 35 South: Des Moines
1.4 km · 1 min
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11
Continue on I 35 South: Des Moines
2643 ft · 32 sec
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12
Merge slight left
47.4 mi · 51 min
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13
Take the exit slight right toward US 20 West: Fort Dodge
3250 ft · 1 min
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14
Merge slight left
135.9 mi · 2 hr 39 min
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15
Turn left onto Delaware Avenue
4.3 mi · 6 min · Delaware Avenue
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16
Continue on Maple Street
1615 ft · 50 sec · Maple Street
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17
Continue on Front Street
1112 ft · 30 sec · Front Street
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18
Continue on Bronson Blacktop
1.1 mi · 2 min · Bronson Blacktop
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19
Turn right onto Old Highway 141
2649 ft · 48 sec · Old Highway 141
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20
Turn left onto 210th Street
4.9 mi · 7 min · 210th Street
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21
Continue on 1st Street
1.1 km · 2 min · 1st Street
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22
Turn right onto South Lewis Boulevard
1429 ft · 40 sec · South Lewis Boulevard
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23
Turn left onto 4th Street
119 m · 17 sec · 4th Street
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24
Arrive at your destination
0 m · 1 sec · 4th Street
Car Route Details
A richer read on the saved driving route between Mason City and Sergeant Bluff.
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 20 West
Merge slight left
136 mi · 02h 39m
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.
Chance Rain Showers leaving Mason City and Showers And Thunderstorms Likely near Sergeant Bluff.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mason City to Sergeant Bluff?
The road trip is about 207.8 miles (334.5 km) and usually takes 04h 07m 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?
Knierim is a useful midpoint, sitting about 103.8 miles from Mason City and 104.1 miles from Sergeant Bluff.
How much longer is the road route than the straight-line distance?
The direct path is about 168.3 miles (270.8 km), while the road route adds roughly 39.5 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 8:46 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.68 one way or $55.36 round trip. Estimated CO2 is about 65.2 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Mason City and Showers And Thunderstorms Likely near Sergeant Bluff.
Flight Path Map
This map shows the direct air route between Mason City and Sergeant Bluff. Straight-line distance: 168.29 mi (270.83 km).
#1 Mason City
City in Cerro Gordo County, Iowa
| Population | 26,931 |
| Coordinates | 43.1535700, -93.2010400 |
| Altitude | 344 |
| Country | United States |
#2 Sergeant Bluff
City in Woodbury County, Iowa, United States of America
| Population | 5,119 |
| Coordinates | 42.4038800, -96.3586400 |
| Altitude | 334 |
| Country | United States |
End: Sergeant Bluff (-96.35864, 42.40388)
Estimated Travel Time
Distance: 335 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 55m |
| 40 mph (64.37 km/h) | 05h 11m |
| 50 mph (80.47 km/h) | 04h 09m |
| 60 mph (96.56 km/h) | 03h 27m |
| 70 mph (112.65 km/h) | 02h 58m |
| 80 mph (129 km/h) | 02h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $27.68 | $55.36 |
| Mid-grade | $4.25 | $31.22 | $62.43 |
| Premium | $4.65 | $34.16 | $68.32 |
| Diesel | $5.30 | $38.93 | $77.86 |
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 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.