How far is Decatur, IL from Jackson, IL?
The driving distance from Decatur, IL to Jackson, IL is about 139.5 miles (224.5 km), with a travel time of about 03h 17m by car.
- The straight-line flight distance is about 104.1 miles (167.6 km).
- For a round trip, plan for roughly 06h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 17m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
City in Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Decatur and Jackson.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Jackson.
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1
Start on East Wood Street
155 m · 23 sec · East Wood Street
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2
Turn left onto South Franklin Street
1982 ft · 45 sec · South Franklin Street
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3
Turn right onto West Eldorado Street
1.2 mi · 2 min · West Eldorado Street
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4
Turn slight right
3.3 mi · 5 min
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5
Continue on South Mount Zion Road
2.1 mi · 3 min · South Mount Zion Road
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6
Continue on North State Route 121
35.3 mi · 51 min · North State Route 121
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7
Continue on Dewitt Avenue
2 mi · 3 min · Dewitt Avenue
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8
Turn right onto North 19th Street
2731 ft · 60 sec · North 19th Street
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9
At the end of the road, turn left onto Charleston Avenue
117 m · 10 sec · Charleston Avenue
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10
Turn right onto Lakeland Boulevard
3.7 mi · 6 min · Lakeland Boulevard
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11
Take the ramp right toward I-57 South: Effingham
2021 ft · 49 sec
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12
Merge slight left
21.4 mi · 23 min
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13
Take the exit slight right toward US 45: Sigel, Effingham
1753 ft · 35 sec
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14
Turn left
1.9 mi · 3 min
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15
Turn left onto East Fayette Avenue
921 ft · 17 sec · East Fayette Avenue
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16
Turn right onto South Willow Street
2 mi · 3 min · South Willow Street
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17
Continue on County Road 1300
7.4 mi · 11 min · County Road 1300
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18
Continue on West Center Street
13.8 mi · 21 min · West Center Street
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19
Turn right onto South Van Buren Street
11 mi · 15 min · South Van Buren Street
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20
Continue on County Road 1100 East
6.7 mi · 9 min · County Road 1100 East
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21
Continue on North West Street
1.3 mi · 3 min · North West Street
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22
Turn left onto West Butler Street
1.3 mi · 3 min · West Butler Street
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23
Turn right onto North Lincoln Avenue
147 m · 17 sec · North Lincoln Avenue
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24
Turn left onto East Main Street
1.1 mi · 2 min · East Main Street
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25
Turn left
18.7 mi · 26 min
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26
Take the exit slight right
1 km · 1 min
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27
Continue on State Street
2.4 mi · 4 min · State Street
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28
Turn right
78 m · 11 sec
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29
Continue on 990N
160 m · 11 sec · 990N
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30
Arrive at your destination
0 m · 1 sec · 990N
Car Route Details
A richer read on the saved driving route between Decatur and Jackson.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
North State Route 121
Continue on North State Route 121
35.3 mi · 00h 51m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Partly Sunny leaving Decatur and Partly Sunny near Jackson.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Jackson?
The road trip is about 139.5 miles (224.5 km) and usually takes 03h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Teutopolis is a useful midpoint, sitting about 69.7 miles from Decatur and 69.8 miles from Jackson.
How much longer is the road route than the straight-line distance?
The direct path is about 104.1 miles (167.6 km), while the road route adds roughly 35.4 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:24 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.55 one way or $37.11 round trip. Estimated CO2 is about 43.7 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Decatur and Partly Sunny near Jackson.
Stop Ideas Near Teutopolis
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 Teutopolis.
Effingham
Mattoon station
Centralia station
Mt. Vernon, IL
Flight Path Map
This map shows the direct air route between Decatur and Jackson. Straight-line distance: 104.15 mi (167.61 km).
#1 Decatur
The most populous city in Macon County, Illinois.
| Population | 70,007 |
| Coordinates | 39.8403100, -88.9548000 |
| Altitude | 205 |
| Country | United States |
#2 Jackson
County in Illinois, United States
| Population | 18,488 |
| Coordinates | 38.7211600, -87.6503000 |
| Altitude | 144 |
| Country | United States |
End: Jackson (-87.6503, 38.72116)
Estimated Travel Time
Distance: 225 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 38m |
| 40 mph (64.37 km/h) | 03h 29m |
| 50 mph (80.47 km/h) | 02h 47m |
| 60 mph (96.56 km/h) | 02h 19m |
| 70 mph (112.65 km/h) | 01h 59m |
| 80 mph (129 km/h) | 01h 44m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $18.55 | $37.11 |
| Mid-grade | $4.25 | $20.92 | $41.85 |
| Premium | $4.65 | $22.90 | $45.80 |
| Diesel | $5.30 | $26.10 | $52.19 |
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 · May 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.