How far is North Peoria, IL from Somonauk, IL?
The driving distance from North Peoria, IL to Somonauk, IL is about 106.9 miles (172.1 km), with a travel time of about 02h 14m by car.
- The straight-line flight distance is about 78.8 miles (126.8 km).
- For a round trip, plan for roughly 04h 28m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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.
This route works well as a day trip with time at the destination.
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 02h 14m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Village in Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between North Peoria and Somonauk.
Turn-by-Turn Driving Directions
Step-by-step road directions between North Peoria and Somonauk.
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1
Start on East McClure Avenue
1964 ft · 59 sec · East McClure Avenue
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2
At the end of the road, turn left onto North Prospect Road
1 mi · 2 min · North Prospect Road
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3
Turn right onto East War Memorial Drive
1.1 mi · 2 min · East War Memorial Drive
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4
Take the exit slight right
779 ft · 22 sec
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5
Keep slight left
122 m · 13 sec
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6
Turn straight onto Northeast Adams Street
1155 ft · 32 sec · Northeast Adams Street
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7
Continue on North Galena Road
7.1 mi · 10 min · North Galena Road
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8
Keep slight left
98 m · 4 sec
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9
Keep slight right
45 m · 2 sec
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10
Continue on North Galena Road
2326 ft · 36 sec · North Galena Road
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11
Continue on North State Route 29
6.1 mi · 8 min · North State Route 29
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12
Continue on South 4th Street
9.1 mi · 11 min · South 4th Street
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13
Continue on Railroad Street
1.1 mi · 1 min · Railroad Street
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14
Continue on County Road 1400 East
17.8 mi · 20 min · County Road 1400 East
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15
Merge slight right
8.9 mi · 10 min
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16
Keep slight right to continue on I 80 East: Joliet
2040 ft · 44 sec
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17
Merge slight left
17.4 mi · 19 min
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18
Take the exit slight right toward I 39 North, US 51 North: Rockford
2555 ft · 1 min
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19
Merge slight left
12.8 mi · 14 min
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20
Take the exit slight right toward US 34: Mendota, Earlville
1790 ft · 46 sec
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21
Turn right onto North 43rd Road
4.2 mi · 6 min · North 43rd Road
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22
Continue on East 9th Road
2317 ft · 39 sec · East 9th Road
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23
Continue on North 4450th Road
17.4 mi · 26 min · North 4450th Road
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24
Arrive at your destination
0 m · 1 sec · West Church Street
Car Route Details
A richer read on the saved driving route between North Peoria and Somonauk.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
County Road 1400 East
Continue on County Road 1400 East
17.8 mi · 00h 20m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Showers And Thunderstorms leaving North Peoria and Showers And Thunderstorms near Somonauk.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from North Peoria to Somonauk?
The road trip is about 106.9 miles (172.1 km) and usually takes 02h 14m 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?
Malden is a useful midpoint, sitting about 53.4 miles from North Peoria and 53.5 miles from Somonauk.
How much longer is the road route than the straight-line distance?
The direct path is about 78.8 miles (126.8 km), while the road route adds roughly 28.1 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 2:02 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.59 one way or $35.17 round trip. Estimated CO2 is about 33.5 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around North Peoria and Showers And Thunderstorms near Somonauk.
Stop Ideas Near Malden
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Malden.
Princeton
Mendota station
Kewanee
Plano
Flight Path Map
This map shows the direct air route between North Peoria and Somonauk. Straight-line distance: 78.81 mi (126.84 km).
#1 North Peoria
A census-designated place in Peoria County, Illinois.
| Population | 6,000 |
| Coordinates | 40.7175400, -89.5842600 |
| Altitude | 193 |
| Country | United States |
#2 Somonauk
City in Illinois, United States of America
| Population | 1,860 |
| Coordinates | 41.6336400, -88.6811900 |
| Altitude | 209 |
| Country | United States |
End: Somonauk (-88.68119, 41.63364)
Estimated Travel Time
Distance: 172 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 33m |
| 40 mph (64.37 km/h) | 02h 40m |
| 50 mph (80.47 km/h) | 02h 08m |
| 60 mph (96.56 km/h) | 01h 46m |
| 70 mph (112.65 km/h) | 01h 31m |
| 80 mph (129 km/h) | 01h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $17.59 | $35.17 |
| Mid-grade | $5.29 | $19.95 | $39.90 |
| Premium | $5.84 | $22.01 | $44.01 |
| Diesel | $6.57 | $24.77 | $49.55 |
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 Illinois · Oct 15, 2026