Grinnell, IA to Sioux City, IA is 251.7 miles and takes about 4h 38m via I 80, with a fuel budget near $44 and enough daylight to finish in a day. This trip stays within the Midwest, specifically crossing Iowa from east to west. You'll spend most of your time on major interstates, making for a straightforward drive. Given the relatively short duration and highway focus, it's a practical option for a single-day trip when you need to get between these two points efficiently.
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
125.8 miles from Grinnell, IA
A natural place for your longest stop of the day
, about 2h 19m into the drive
.
Main Roads
Road
Distance
Duration
I 80
153.9 mi
2h 47m
I 29
75.3 mi
1h 21m
I 880
16.7 mi
17m
West Street
3.2 mi
5m
South Floyd Boulevard
0.6 mi
1m
4th Avenue
0.3 mi
<1m
Court Street
0.2 mi
<1m
9th Street
0.2 mi
<1m
Longest stretch:
I 80
— 153.9 mi, about 2h 47m
Traffic on I-80
Hour-of-day weekday pattern from 44 FHWA count stations on your route.
Peak
4 PM
~2,170 veh/hr typical
· worst 2,554
Quietest
2 AM
~183 veh/hr
Peak-to-quiet ratio
11.9×
busier at peak than in the quiet hours
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Averaged across 51 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 Grinnell, IA and Sioux City, IA.
1
Start on Park Street
67 ft·10 sec·Park Street
2
Turn left onto 4th Avenue
0.3 mi·37 sec·4th Avenue
3
Turn left onto IA 146
3.2 mi·5 min·West Street
4
Take the ramp
0.4 mi·48 sec
5
Merge onto I 80
58 mi·1 hr 4 min·I 80
Use the straight / slight right lanes.
6
Keep slight right at fork onto I 80
96 mi·1 hr 42 min·I 80
Toward I 80 West: OmahaUse the straight / slight right lanes.
7
Keep slight right at fork onto I 880
17 mi·17 min·I 880
Exit 27Toward I 880 West: North Omaha, Sioux CityUse the slight right lane.
8
Keep slight right at fork
0.4 mi·38 sec
Exit 0BToward I 29 North: Sioux City
9
Merge onto I 29
75 mi·1 hr 21 min·I 29
10
Take the exit
0.3 mi·43 sec
Toward Floyd Boulevard, Virginia Street
11
Turn right onto South Floyd Boulevard
0.6 mi·1 min·South Floyd Boulevard
Use the right lane.
12
Turn left onto 5th Street
396 ft·14 sec·5th Street
13
Turn right onto Iowa Street
346 ft·7 sec·Iowa Street
14
Keep slight left at fork onto 6th Street
426 ft·17 sec·6th Street
Use the left lane.
15
Turn right onto Court Street
0.2 mi·39 sec·Court Street
16
Turn left onto 9th Street
0.2 mi·45 sec·9th Street
17
Turn right
115 ft·8 sec
18
Arrive at destination
Trip Plan
For this 4-hour-plus drive, leaving in the morning will give you plenty of time to reach Sioux City before evening. With only one recommended stop and a mostly highway profile, you can be quite flexible with your timing. The fuel cost estimate of $44 is based on current averages, so keep that in mind as you budget. Pay attention to the exit numbers on I 80 as you approach the transition to I 29 and I 880, as this is where navigation becomes more critical.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 125.8 miles from Grinnell, IA, or about 2h 19m into the drive.
The longest continuous stretch on this route runs about 153.9 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 55 miles or 1h 3m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 125.8 miles or 2h 19m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 46m
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 Grinnell, 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 Grinnell, IA
This is one driving day of about 251.7 miles and 4h 38m.
Your first comfortable stop window is around 55 miles from Grinnell, 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 I 80 for about 153.9 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 16
5 decision points cluster between mile 62.2 and 251.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
62.2 mi into trip|~1h 11m in|I 80
Keep slight right at fork onto I 80 toward I 80 West: Omaha
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 80 West: Omaha
9
157.7 mi into trip|~2h 54m in|I 880
Keep slight right at fork onto I 880 toward I 880 West: North Omaha, Sioux City
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 27
Toward I 880 West: North Omaha, Sioux City
6
174.4 mi into trip|~3h 12m in
Keep slight right at fork toward I 29 North: Sioux City
Highway fork - watch signs carefully
Exit 0B
Toward I 29 North: Sioux City
6
250.4 mi into trip|~4h 34m in|South Floyd Boulevard
Turn right onto South Floyd Boulevard
Lane positioning matters here
Use the right lane.
7
251.2 mi into trip|~4h 36m in|6th Street
Keep slight left at fork onto 6th Street
Highway fork - watch signs carefully. Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$37.17 one way
$74.34 round trip
$3.75/gal25.4 MPG avg88 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.14
$41.04
$82.07
premium
$4.72
$46.73
$93.47
diesel
$4.80
$47.53
$95.05
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$37
Meals
$25–$50
Total
$62–$87
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 88.1 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $26 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
75.5
0
$26.43
$12.08
Efficient EV
62.9
0
$22.02
$10.07
EV Truck/SUV
100.7
1
$35.24
$16.11
Gas CO2
88 kg
EV CO2
29 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 Jul 18, 2026
Origin
Grinnell, IA
Late night
in Grinnell on Monday
Local time
5:31 AM
CDT
Current temp
91°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
NW 8 mph16% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 1:35AM CDT until July 18 at 7:00PM CDT by NWS Quad Cities IA IL
Heat Advisory
Heat Advisory issued July 18 at 1:35AM CDT until July 18 at 7:00PM CDT by NWS Quad Cities IA IL
Destination
Sioux City, IA
Late night
in Sioux City on Monday
Local time
5:31 AM
CDT
Current temp
92°F
Mostly Sunny then Slight Chance Rain Showers
ENE 0 to 10 mph16% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 1:35AM CDT until July 18 at 7:00PM CDT by NWS Quad Cities IA IL
Heat Advisory
Heat Advisory issued July 18 at 1:35AM CDT until July 18 at 7:00PM CDT by NWS Quad Cities IA IL
88°F
Avoca, IA
126 mi in
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
1 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
4h 38m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
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 is almost entirely highway, with 98% of the drive on interstates. You'll encounter a long stretch of 153.9 miles on I 80 before transitioning. Expect a consistent interstate cruising experience for the vast majority of the trip, with exits spaced out as you move through more rural areas of Iowa.
98% highway — fuel and pacing are the main things to plan.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 153.9 mi on I 80.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on I 80 and I 29. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 62.2 miles in near I 80.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 16 significant decision points across 251.7 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 62.2 miles (I 80): Highway fork - watch signs carefully. Lane positioning matters here; at 157.7 miles (I 880): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 174.4 miles: Highway fork - watch signs carefully.
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
Doable as a same-day drive at 4h 38m. Total distance: 251.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 38m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (98%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 153.9 miles on I 80. The full list of main roads is in the Roads section above.
Yes — we found about 35 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 route has a higher-than-average number of complex decision points, which get harder in the dark. 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 35 rest areas along the route for bathroom stops.
The main spots that need attention: at 62.2 miles (I 80): Highway fork - watch signs carefully. Lane positioning matters here; at 157.7 miles (I 880): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 174.4 miles: Highway fork - watch signs carefully.
Possible but tiring. At 4.6 hours each way, an in-and-out day trip would put you behind the wheel for 9.3 hours — manageable with a long break at Sioux City, IA, but most travelers stay overnight.
