Sac City to Sioux City is 76.2 miles and takes about 1h 37m via US 20, with a fuel budget near $11 and enough daylight to finish in a day. This short trip stays within the Midwest, traversing rural Iowa. It's a straightforward connection between two points in the same state, making it ideal for a quick transit or a relaxed exploration day. You'll spend most of your time on the highway, so it’s a practical option if you just need to get from A to B efficiently.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
38.1 miles from Sac City, IA
A natural place for your longest stop of the day
, about 46m into the drive
.
Main Roads
Road
Distance
Duration
US 20
72 mi
1h 27m
Sierra Avenue
1.3 mi
1m
North 5th Street
1 mi
2m
6th Street
0.9 mi
2m
South Fairmount Street
0.6 mi
1m
Court Street
0.2 mi
<1m
9th Street
0.2 mi
<1m
Main Street
<0.1 mi
<1m
Longest stretch:
US 20
— 72 mi, about 1h 27m
Turn-by-Turn Driving Directions
Step-by-step road directions between Sac City, IA and Sioux City, IA.
1
Start on CR D36
71 ft·9 sec·Main Street
2
Turn left onto North 5th Street
1.0 mi·2 min·North 5th Street
3
Continue on CR M54
1.3 mi·1 min·Sierra Avenue
4
Turn left onto US 20; US 71
28 mi·31 min·US 20; US 71
5
Continue on US 20; US 59
44 mi·55 min·US 20; US 59
Use the straight lane.
6
Turn right onto South Fairmount Street
0.6 mi·1 min·South Fairmount Street
Use the right lane.
7
Continue on 6th Street
0.9 mi·2 min·6th Street
8
Turn right onto Court Street
0.2 mi·39 sec·Court Street
9
Turn left onto 9th Street
0.2 mi·45 sec·9th Street
10
Turn right
115 ft·8 sec
11
Arrive at destination
Trip Plan
Given the drive is just under two hours, you have a lot of flexibility with your departure time. Leaving in the morning or early afternoon is perfectly fine. With only 76.2 miles, you won't need extensive stops, but it's always wise to stretch your legs once or twice. Keep an eye on your fuel gauge, as the $11 estimated cost suggests a single fill-up might be sufficient. Since US 20 is the main artery for most of the way, focus on enjoying the straightforward travel between towns.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 38.1 miles from Sac City, IA, or about 46m into the drive.
The longest continuous stretch on this route runs about 72 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 17 miles or 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 38.1 miles or 46m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 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 Sac City, IA so your first major turns are already loaded.
Day 1
Settle into the route from Sac City, IA
This is one driving day of about 76.2 miles and 1h 37m.
Your first comfortable stop window is around 17 miles from Sac City, IA.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on US 20 for about 72 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 5
5 decision points cluster between mile 0 and 76.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0 mi into trip|~0m in|North 5th Street
Turn left onto North 5th Street
Navigation decision point
6
74.2 mi into trip|~1h 32m in|South Fairmount Street
Turn right onto South Fairmount Street
Lane positioning matters here
Use the right lane.
4
75.7 mi into trip|~1h 35m in|Court Street
Turn right onto Court Street
Navigation decision point
5
76 mi into trip|~1h 36m in|9th Street
Turn left onto 9th Street
Navigation decision point
5
76.2 mi into trip|~1h 36m in
Turn right
Navigation decision point
Fuel & Cost
Regular Gas
$11.81 one way
$23.63 round trip
$3.94/gal25.4 MPG avg27 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.32
$12.95
$25.91
premium
$4.93
$14.78
$29.57
diesel
$5.60
$16.80
$33.59
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$12
Meals
$25–$50
Total
$37–$62
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 26.7 kg one way.
Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $8 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
22.9
0
$8.00
$3.66
Efficient EV
19.1
0
$6.67
$3.05
EV Truck/SUV
30.5
0
$10.67
$4.88
Gas CO2
27 kg
EV CO2
9 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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 Aug 25, 2026
Origin
Sac City, IA
Evening
in Sac City on Saturday
Local time
7:45 PM
CDT
Current temp
85°F
Mostly Sunny
WSW 6 mph2% chanceLive forecast
Destination
Sioux City, IA
Evening
in Sioux City on Saturday
Local time
7:45 PM
CDT
Current temp
87°F
Sunny
NW 5 mph2% 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
2 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
1h 37m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
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 primarily highway, with 94% of your travel on main roads like US 20. You'll experience a long stretch of 72 miles on US 20, offering consistent cruising. The transition to surface streets like Sierra Avenue and North 5th Street happens as you approach Sioux City. Expect mostly rural cruising for the bulk of the drive.
94% highway — fuel and pacing are the main things to plan.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 72 mi on US 20.
How Hard Is This Drive?
1/10
This is a straightforward highway drive that stays mostly on US 20 and Sierra Avenue. Navigation is very simple - set it and forget it for most of the drive. The trickiest moment comes early in the drive near North 5th Street.
Driving Effort1/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Sac City, IA to Sioux City, IA is easy. At 1h 37m with 94% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
The main spots that need attention: near the start (North 5th Street): Navigation decision point; at 74.2 miles (South Fairmount Street): Lane positioning matters here; at 75.7 miles (Court Street): Navigation decision point.
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
The longest stretch is about 72 miles on US 20. The full list of main roads is in the Roads section above.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: near the start (North 5th Street): Navigation decision point; at 74.2 miles (South Fairmount Street): Lane positioning matters here; at 75.7 miles (Court Street): Navigation decision point.
Yes. A round trip is manageable in a single day if you plan a break at Sioux City, IA before heading back.
