De Witt, IA to Sioux City, IA is 328.6 miles and takes about 6h 35m via Avenue of the Saints and US 30, with a fuel budget near $52 and enough daylight to finish in a day. This Midwest drive stays within Iowa, offering a consistent experience across its plains. With a recommended one-day trip, you'll find it's a straightforward route for getting from point A to point B. Consider this if you're looking for a direct path with minimal fuss.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
164.3 miles from De Witt, IA
A natural place for your longest stop of the day
, about 3h 18m into the drive
.
Main Roads
Road
Distance
Duration
Avenue of the Saints
214.7 mi
4h 5m
US 30
57.2 mi
1h 14m
Highway 20
42.9 mi
53m
160th Street
6.4 mi
7m
11th Street
2.6 mi
4m
United States Highway 20
1.9 mi
2m
6th Street
0.9 mi
2m
South Fairmount Street
0.6 mi
1m
Longest stretch:
Avenue of the Saints
— 214.7 mi, about 4h 5m
Traffic on I-380
Hour-of-day weekday pattern from 44 FHWA count stations on your route.
Peak
4 PM
~1,813 veh/hr typical
· worst 2,325
Quietest
2 AM
~94 veh/hr
Peak-to-quiet ratio
19.3×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 104 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between De Witt, IA and Sioux City, IA.
1
Start on 8th Street
0.1 mi·23 sec·8th Street
2
Turn right onto 7th Avenue
0.2 mi·42 sec·7th Avenue
3
Turn left onto 11th Street
2.6 mi·4 min·11th Street
4
Continue on US 30
57 mi·1 hr 14 min·US 30
5
Take the exit
0.7 mi·1 min
Toward I 380 North, IA 27 North: Cedar Rapids
6
Merge onto I 380; IA 27
54 mi·1 hr·Avenue of the Saints
7
Keep slight left at fork onto US 20; IA 27
160 mi·3 hr 4 min·Avenue of the Saints
8
Continue on US 20
6.4 mi·7 min·160th Street
9
Continue on US 20
1.9 mi·2 min·United States Highway 20
10
Continue on US 20
43 mi·53 min·Highway 20
Use the straight lane.
11
Turn right onto South Fairmount Street
0.6 mi·1 min·South Fairmount Street
Use the right lane.
12
Continue on 6th Street
0.9 mi·2 min·6th Street
13
Turn right onto Court Street
0.2 mi·39 sec·Court Street
14
Turn left onto 9th Street
0.2 mi·45 sec·9th Street
15
Turn right
115 ft·8 sec
16
Arrive at destination
Trip Plan
Given the 6h 35m estimated drive time, you can comfortably complete this trip in a single day. Leaving in the morning will give you plenty of daylight, and the single recommended stop suggests you won't need to break up the drive extensively. Keep an eye on your fuel, especially before heading into longer stretches where services might be less frequent. The transition from highway to surface roads around the 31% highway mark might require you to slow down and be more aware of your surroundings.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 164.3 miles from De Witt, IA, or about 3h 18m into the drive.
The longest continuous stretch on this route runs about 214.7 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 72 miles or 1h 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 164.3 miles or 3h 18m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 20m
Traffic, exits, and arrival timing usually matter more near Sioux City, IA than in the middle of the route.
Before You Leave
+
Open the route before leaving De Witt, IA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from De Witt, IA
This is one driving day of about 328.6 miles and 6h 35m.
Your first comfortable stop window is around 72 miles from De Witt, IA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Avenue of the Saints for about 214.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 9
5 decision points cluster between mile 0.1 and 328.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.1 mi into trip|~0m in|7th Avenue
Turn right onto 7th Avenue
Navigation decision point
5
60.1 mi into trip|~1h 19m in
Take the exit toward I 380 North, IA 27 North: Cedar Rapids
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 380 North, IA 27 North: Cedar Rapids
6
326.7 mi into trip|~6h 30m in|South Fairmount Street
Turn right onto South Fairmount Street
Lane positioning matters here
Use the right lane.
5
328.4 mi into trip|~6h 34m in|9th Street
Turn left onto 9th Street
Navigation decision point
5
328.6 mi into trip|~6h 35m in
Turn right
Navigation decision point
Fuel & Cost
Regular Gas
$54.81 one way
$109.63 round trip
$4.24/gal25.4 MPG avg115 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.61
$59.57
$119.15
premium
$5.26
$68.04
$136.07
diesel
$6.18
$79.94
$159.88
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$55
Meals
$25–$50
Total
$80–$105
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 115 kg one way.
Prices: EIA weekly data, 2026-10-12.
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $35 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
98.6
1
$34.50
$15.77
Efficient EV
82.2
0
$28.75
$13.14
EV Truck/SUV
131.4
1
$46.00
$21.03
Gas CO2
115 kg
EV CO2
38 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Oct 18, 2026
Origin
De Witt, IA
Morning
in De Witt on Sunday
Local time
9:25 AM
CDT
Current temp
38°F
Clear
S 5 mph0% chanceLive forecast
Destination
Sioux City, IA
Morning
in Sioux City on Sunday
Local time
9:25 AM
CDT
Current temp
42°F
Clear
SSE 10 mph0% chanceLive forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
4 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
6h 35m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This route covers 328.6 miles, with 31% of that on highways, meaning you'll spend a good portion of the drive on surface roads. The longest continuous stretch on a highway is 214.7 miles along the Avenue of the Saints. You can expect a mixed driving experience, transitioning from higher-speed highway cruising to more rural, lower-speed road segments. Be ready for more frequent intersections and slower speeds as you move away from the main highways.
31% highway, the rest on surface roads — varied driving throughout.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 214.7 mi on Avenue of the Saints.
How Hard Is This Drive?
3/10
This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.1 miles in near 7th Avenue.
Driving Effort3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
The route itself is not hard, but at 6h 35m, endurance matters. Plan breaks every 2-3 hours. The 9 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (7th Avenue): Navigation decision point; at 60.1 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 326.7 miles (South Fairmount Street): Lane positioning matters here.
Sioux City is on the western edge of the state of Iowa. It is on the Missouri River and many parts of Sioux City are among the unique Loess Hills formations.
Top landmarks
•Sergeant Floyd — museum boat in Sioux City, Iowa, United States
•Woodbury County Courthouse — county courthouse in Sioux City, United States of America
•St. Boniface Catholic Church — church building in Sioux City, United States of America
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 214.7 miles on Avenue of the Saints. The full list of main roads is in the Roads section above.
Yes — we found about 11 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Sioux City, IA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 11 rest areas along the route for bathroom stops.
The main spots that need attention: at 0.1 miles (7th Avenue): Navigation decision point; at 60.1 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 326.7 miles (South Fairmount Street): Lane positioning matters here.
Not recommended in a single day. At 6.6 hours each way, a round trip means 13.2 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Sioux City, IA before the return drive.
