How far is Sioux City, IA from De Witt, IA?
The driving distance from Sioux City, IA to De Witt, IA is about 328.5 miles (528.7 km), with a travel time of about 06h 36m by car.
- The straight-line flight distance is about 303.8 miles (488.9 km).
- For a round trip, plan for roughly 13h 13m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 36m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 Hardin County, Iowa, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Partly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sioux City and De Witt.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sioux City and De Witt.
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1
Start on the route
35 m · 14 sec
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2
Turn left onto 9th Street
990 ft · 46 sec · 9th Street
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3
Turn right onto Court Street
767 ft · 27 sec · Court Street
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4
Turn left onto 7th Street
122 m · 19 sec · 7th Street
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5
Turn right onto Iowa Street
129 m · 24 sec · Iowa Street
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6
Turn left onto 6th Street
1.4 km · 2 min · 6th Street
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7
Continue on Fairmount Street
3030 ft · 1 min · Fairmount Street
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8
Turn left onto Gordon Drive
3.4 mi · 7 min · Gordon Drive
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9
Continue on Highway 20
39.4 mi · 47 min · Highway 20
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10
Continue on United States Highway 20
8.3 mi · 10 min · United States Highway 20
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11
Continue on 220th Street
165.9 mi · 3 hr 11 min · 220th Street
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12
Keep slight right to continue on Avenue of the Saints
48.5 mi · 54 min · Avenue of the Saints
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13
Take the exit slight right
722 ft · 18 sec
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14
Keep slight left to continue on US 30 East, US 151 North: Mount Vernon
1 km · 1 min
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15
Keep slight left to continue on US 30 East, US 151 North: Mount Vernon
1306 ft · 32 sec
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16
Merge slight left
57.8 mi · 1 hr 15 min
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17
Continue on 11th Street
2246 ft · 35 sec · 11th Street
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18
Continue on 11th Street
1.5 mi · 3 min · 11th Street
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19
Turn right onto 7th Avenue
1067 ft · 42 sec · 7th Avenue
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20
Turn left onto 8th Street
628 ft · 21 sec · 8th Street
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21
Arrive at your destination
0 m · 1 sec · 8th Street
Car Route Details
A richer read on the saved driving route between Sioux City and De Witt.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
220th Street
Continue on 220th Street
166 mi · 03h 11m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Chance Rain Showers leaving Sioux City and Partly Sunny then Slight Chance Showers And Thunderstorms near De Witt.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sioux City to De Witt?
The road trip is about 328.5 miles (528.7 km) and usually takes 06h 36m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Owasa is a useful midpoint, sitting about 163.9 miles from Sioux City and 164.6 miles from De Witt.
How much longer is the road route than the straight-line distance?
The direct path is about 303.8 miles (488.9 km), while the road route adds roughly 24.7 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.71 one way or $87.41 round trip. Estimated CO2 is about 103 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Sioux City and Partly Sunny then Slight Chance Showers And Thunderstorms near De Witt.
Flight Path Map
This map shows the direct air route between Sioux City and De Witt. Straight-line distance: 303.79 mi (488.9 km).
#1 Sioux City
The second most populous city in Iowa.
| Population | 82,651 |
| Coordinates | 42.4999900, -96.4003100 |
| Altitude | 366 |
| Country | United States |
#2 De Witt
Township of Iowa
| Population | 5,242 |
| Coordinates | 41.8233600, -90.5381900 |
| Altitude | 216 |
| Country | United States |
End: De Witt (-90.53819, 41.82336)
Estimated Travel Time
Distance: 529 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 56m |
| 40 mph (64.37 km/h) | 08h 12m |
| 50 mph (80.47 km/h) | 06h 34m |
| 60 mph (96.56 km/h) | 05h 28m |
| 70 mph (112.65 km/h) | 04h 41m |
| 80 mph (129 km/h) | 04h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $43.71 | $87.41 |
| Mid-grade | $4.25 | $49.29 | $98.58 |
| Premium | $4.65 | $53.94 | $107.88 |
| Diesel | $5.30 | $61.47 | $122.95 |
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 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.