How far is North Sioux City, SD from Watertown, SD?

The driving distance from North Sioux City, SD to Watertown, SD is about 179.6 miles (289 km), with a travel time of about 02h 33m by car.

  • The straight-line flight distance is about 166.9 miles (268.6 km).
  • For a round trip, plan for roughly 05h 06m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Trip Tools

Reverse, save, or send this route

This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
179.59 mi
02h 33m
Flight
166.91 mi
268.62 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from North Sioux City.

Flight Distance

Direct air line
166.91 mi
Kilometers
268.62 km
Flight Time
00h 20m

Driving Distance

Road route
179.59 mi
Kilometers
289.02 km
Drive Time
02h 33m

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 02h 33m.

Arrival Snapshot
Arrive in Watertown
Sat, May 30, 11:51 AM CDT
Return by in North Sioux City
Sat, May 30, 2:25 PM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave North Sioux City
2026-05-30T09:18
Arrive Watertown
Sat, May 30, 11:51 AM CDT
Route Timing
02h 33m
One way by road
Best Departure Window
8:00 AM to 10:00 AM CDT
Aim for a morning departure
Arrive between
10:33 AM to 12:33 PM CDT

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
1:24 PM CDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in North Sioux City
9:30 PM CDT
Morning start is best

This departure sits inside the recommended comfort window for the route.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Baltic
SD

City in Minnehaha County, South Dakota, United States

From North Sioux City
89.9 mi
01h 16m
To Watertown
89.7 mi
01h 16m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
85°F
Saturday

Partly Sunny then Chance Showers And Thunderstorms

Starts
Sat, May 30 6:00 AM CDT
Wind
10 to 15 mph SE
Destination
87°F
Saturday

Mostly Sunny

Starts
Sat, May 30 6:00 AM CDT
Wind
9 to 18 mph SE

Driving Route Map

The map below follows the saved road route between North Sioux City and Watertown.

Turn-by-Turn Driving Directions

Step-by-step road directions between North Sioux City and Watertown.

  1. 1

    Start on Military Road

    829 ft · 27 sec · Military Road

  2. 2

    Turn right onto River Drive

    1.4 km · 2 min · River Drive

  3. 3

    Take the ramp right toward I 29 North

    1334 ft · 33 sec

  4. 4

    Merge slight left

    174.8 mi · 2 hr 47 min

  5. 5

    Take the exit slight right toward US 212: Watertown, Kranzburg

    1564 ft · 38 sec

  6. 6

    Turn left onto US 212: Watertown

    41 m · 4 sec

  7. 7

    Turn straight onto 9th Avenue Southeast

    3138 ft · 1 min · 9th Avenue Southeast

  8. 8

    Turn right onto Willow Creek Drive Southeast

    1.1 mi · 2 min · Willow Creek Drive Southeast

  9. 9

    Continue on 1st Avenue Northeast

    1.4 mi · 3 min · 1st Avenue Northeast

  10. 10

    Turn left onto North Broadway

    885 ft · 26 sec · North Broadway

  11. 11

    Arrive at your destination

    0 m · 1 sec · South Broadway

Car Route Details

A richer read on the saved driving route between North Sioux City and Watertown.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
11 steps
5 turns on the saved route
Ramps & Exits
3
1 merges, 2 ramps or exits
Navigation Density
6.1 / 100 mi
Decision points by distance
Main Roads
I 29 North
175 mi · 97%
1st Avenue Northeast
1.42 mi · 1%
Willow Creek Drive Southeast
1.11 mi · 1%
River Drive
0.9 mi
9th Avenue Southeast
0.59 mi
US 212
0.32 mi
Longest Stretch

I 29 North

Merge slight left

175 mi · 02h 47m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

A comfortable day-trip route

This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.

Drive Time
02h 33m
Day trip friendly
Same-Day Return
05h 06m
Round-trip wheel time
Road vs Air
+12.7 mi
166.9 mi direct line
Halfway Stop
Baltic
01h 16m from North Sioux City
Leave By
1:24 PM CDT
Morning start is best
Weather Watch

Partly Sunny then Chance Showers And Thunderstorms leaving North Sioux City and Mostly Sunny near Watertown.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from North Sioux City to Watertown?

The road trip is about 179.6 miles (289 km) and usually takes 02h 33m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.

What is the halfway point on this route?

Baltic is a useful midpoint, sitting about 89.9 miles from North Sioux City and 89.7 miles from Watertown.

How much longer is the road route than the straight-line distance?

The direct path is about 166.9 miles (268.6 km), while the road route adds roughly 12.7 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 1:24 PM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $23.91 one way or $47.82 round trip. Estimated CO2 is about 56.3 kg one way.

What should you check before leaving?

Before you leave, expect Partly Sunny then Chance Showers And Thunderstorms around North Sioux City and Mostly Sunny near Watertown.

Flight Path Map

This map shows the direct air route between North Sioux City and Watertown. Straight-line distance: 166.91 mi (268.62 km).

North Sioux City

#1 North Sioux City

City in Union County South Dakota, United States

Population2,928
Coordinates42.5272200, -96.4830900
Altitude337
CountryUnited States
Watertown

#2 Watertown

City in and county seat of Codington County, South Dakota, United States

Population22,303
Coordinates44.8994100, -97.1150700
Altitude528
CountryUnited States
Start: Military Road (-96.483032, 42.52725)
End: South Broadway (-97.115008, 44.899398)

Estimated Travel Time

Distance: 289 km by road

SpeedTime
30 mph (48.3 km/h)05h 59m
40 mph (64.37 km/h)04h 29m
50 mph (80.47 km/h)03h 35m
60 mph (96.56 km/h)02h 59m
70 mph (112.65 km/h)02h 33m
80 mph (129 km/h)02h 14m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
6.34 gal
23.99 L · about $23.91
Round trip
$47.82
12.68 gal · 47.98 L
Estimated CO2
56.3 kg one way
Round trip: 112.7 kg / 248 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $23.91 $47.82
Mid-grade $4.25 $26.96 $53.93
Premium $4.65 $29.51 $59.01
Diesel $5.30 $33.63 $67.25

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 South Dakota · May 30, 2026

There is no time difference between North Sioux City and Watertown. The current time is 09:18:18.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.