The drive from Decatur, IL to Campton, IL covers 164.4 miles and takes about 3h 36m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 55, IL 3, County Road 2080 E for much of the mileage,
and the overall profile is mixed drive.
The longest uninterrupted segment is about 48.2 miles on I 55.
At current regular gas prices, budget about $25.70 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
82.2 miles from Decatur, IL
A natural place for your longest stop of the day
, about 1h 46m into the drive
.
Mixed drive route profile with national parks nearby.
Drive Character
The drive from Decatur, IL to Campton, IL covers 164.4 miles and takes about 3h 36m, using a mix of highways and local roads.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 24 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 55 is the longest continuous segment at about 48.2 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. Navigation is very simple - set it and forget it for most of the drive. The trickiest moment comes around 0.1 miles in near US 51 Business / South Main Street.
Driving Effort2/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Decatur, IL to Campton, IL is easy. At 3h 36m with 47% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (US 51 Business / South Main Street): Navigation decision point; at 53.9 miles: Navigation decision point; at 54.3 miles (I 55): Merge point - match speed before joining. Lane positioning matters here.
Critical Maneuvers
5 of 9 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
4
0.1 mi into trip|~0m in|US 51 Business / South Main Street
Turn left onto US 51 Business / South Main Street
Navigation decision point
5
53.9 mi into trip|~1h 15m in
Turn left toward I 55 South: East Saint Louis
Navigation decision point
Toward I 55 South: East Saint Louis
5
54.3 mi into trip|~1h 16m in|I 55
Merge onto I 55
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
5
102.4 mi into trip|~2h 8m in
Take the exit toward IL 159 South: Collinsville
Exit ramp - move to the correct lane early
Exit 15A
Toward IL 159 South: Collinsville
5
116.7 mi into trip|~2h 31m in|IL 159 / South Illinois Street
Enter roundabout onto IL 159 / South Illinois Street
Roundabout - know your exit number before entering
Main Roads
Road
Distance
Duration
I 55
48.2 mi
52m
IL 3
23.3 mi
28m
County Road 2080 E
18.4 mi
22m
South Taylorville Road
12.9 mi
15m
Sarpy Street
12.2 mi
21m
North Illinois Street
9.8 mi
15m
South Illinois Street
8.3 mi
12m
Main Street
8 mi
11m
Longest stretch:
I 55
— 48.2 mi, about 52m
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur, IL and Campton, IL.
1
Start on East Wood Street
298 ft·15 sec·East Wood Street
2
Turn left onto US 51 Business
1.3 mi·2 min·South Main Street
3
Turn right onto West South Side Drive
0.9 mi·1 min·West South Side Drive
4
Turn left onto IL 48
13 mi·15 min·South Taylorville Road
5
Continue on IL 48
18 mi·22 min·County Road 2080 E
6
Continue on IL 48
0.6 mi·51 sec·County Road 975 N
7
Continue on IL 48
12 mi·21 min·Sarpy Street
8
Continue on IL 48
7.6 mi·11 min·Front Street
9
Turn left
0.3 mi·44 sec
Toward I 55 South: East Saint Louis
10
Merge onto I 55
48 mi·52 min·I 55
Use the straight / slight right lanes.
11
Take the exit
0.3 mi·47 sec
Exit 15AToward IL 159 South: Collinsville
12
Continue on IL 159
3.0 mi·4 min·Vandalia Street
13
Continue on IL 159
1.3 mi·1 min·South Morrison Avenue
14
Continue on IL 159
9.8 mi·15 min·North Illinois Street
15
Enter roundabout onto IL 159
181 ft·4 sec·South Illinois Street
16
Continue on IL 159
8.3 mi·12 min·South Illinois Street
17
Continue on IL 159
6.1 mi·9 min·State Route 159
18
Continue on IL 156; IL 159
0.2 mi·19 sec·North Main Street
19
Continue on IL 159
0.2 mi·13 sec·N Main St
20
Continue on IL 159
8.0 mi·11 min·Main Street
21
Continue on IL 3
23 mi·28 min·IL 3
22
Turn left onto IL 150
1.4 mi·2 min·State Street
23
Turn right onto Welge Drive
0.1 mi·23 sec·Welge Drive
24
Arrive at destination
Welge Drive
Trip Plan
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 82.2 miles from Decatur, IL, or about 1h 46m into the drive.
The longest continuous stretch on this route runs about 48.2 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 36 miles or 46m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 82.2 miles or 1h 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 2h 58m
Traffic, exits, and arrival timing usually matter more near Campton, IL than in the middle of the route.
Before You Leave
+
Open the route before leaving Decatur, IL 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 Decatur, IL
This is one driving day of about 164.4 miles and 3h 36m.
Your first comfortable stop window is around 36 miles from Decatur, IL.
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 55 for about 48.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 82.2 mi from Decatur, IL
· 1h 46m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Springfield 1908 Race Riot National Monument
National Monument
In August 1908, a large White mob attacked the Black community in Springfield, Illinois. Rioters destroyed homes and businesses and lynched two men. The event led to the founding of the National Assoc...
26 mi from route
~65 min detour
Free
near mile 22.7
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$25.70 one way
$51.40 round trip
$3.97/gal25.4 MPG avg58 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$28.22
$56.44
premium
$4.89
$31.64
$63.27
diesel
$5.61
$36.30
$72.59
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$26
Meals
$25–$50
Total
$51–$76
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 57.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
EV Charging Along Route
6 DC fast chargers
· Coverage: excellent
Nissan Charging Station
Decatur, Illinois
Other
1 DCFC
ChargePoint Charging Station
Decatur, Illinois
ChargePoint
1 DCFC
ChargePoint Charging Station
Decatur, Illinois
ChargePoint
1 DCFC
ChargePoint Charging Station
Decatur, Illinois
ChargePoint
1 DCFC
ChargePoint Charging Station
Decatur, Illinois
ChargePoint
1 DCFC
ChargePoint Charging Station
Decatur, Illinois
ChargePoint
1 DCFC
ChargePoint: 5
Other: 1
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $17 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
49.3
0
$17.26
$7.89
Efficient EV
41.1
0
$14.39
$6.58
EV Truck/SUV
65.8
0
$23.02
$10.52
Gas CO2
58 kg
EV CO2
19 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 Apr 18, 2026
Origin
Decatur, IL
Morning
in Decatur on Saturday
Local time
6:55 AM
CDT
Current temp
47°F
Showers And Thunderstorms
W 15 mph85% chanceLive forecast
Flood Warning
Flood Warning issued April 18 at 4:02AM CDT by NWS Chicago IL
Flood Warning
Flood Warning issued April 18 at 3:59AM CDT until April 18 at 7:00PM CDT by NWS Chicago IL
Destination
Campton, IL
Morning
in Campton on Saturday
Local time
6:55 AM
CDT
Current temp
56°F
Unavailable
Live 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
9 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
3h 36m 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.
Frequently Asked Questions
The drive from Decatur, IL to Campton, IL covers 164.4 miles and takes about 3h 36m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 55, IL 3, County Road 2080 E. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 82.2 miles from Decatur, IL. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $25.70 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
The drive from Decatur, IL to Campton, IL is easy. At 3h 36m with 47% highway, most drivers will find it relaxed and low-stress.
The main spots that need attention: at 0.1 miles (US 51 Business / South Main Street): Navigation decision point; at 53.9 miles: Navigation decision point; at 54.3 miles (I 55): Merge point - match speed before joining. Lane positioning matters here.
The route from Decatur, IL to Campton, IL does not surface many named destination signs beyond the main corridor.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.
