How far is Decatur, AL from Demopolis, AL?
The driving distance from Decatur, AL to Demopolis, AL is about 190.3 miles (306.2 km), with a travel time of about 03h 44m by car.
- The straight-line flight distance is about 152.4 miles (245.3 km).
- For a round trip, plan for roughly 07h 29m 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 44m.
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 Jefferson County, Alabama, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Decatur and Demopolis.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Demopolis.
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1
Start on the route
130 m · 37 sec
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2
At the end of the road, turn left onto Ferry Street Northeast
50 m · 9 sec · Ferry Street Northeast
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3
Turn left onto Lee Street Northeast
1583 ft · 53 sec · Lee Street Northeast
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4
At the end of the road, turn right onto 6th Avenue Northeast
580 ft · 15 sec · 6th Avenue Northeast
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5
Continue on 6th Avenue Southeast
3 mi · 6 min · 6th Avenue Southeast
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6
Turn left onto Point Mallard Parkway
4.2 mi · 6 min · Point Mallard Parkway
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7
Take the ramp slight right toward I-65 South: Birmingham
1944 ft · 47 sec
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8
Merge slight left
67.1 mi · 1 hr 12 min
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9
Take the exit slight right toward I 22 West, US 31: Memphis, Fultondale
2715 ft · 38 sec
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10
Keep slight left to continue on I 22 West: Memphis
2666 ft · 38 sec
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11
Keep slight left to continue on Montgomery
1940 ft · 28 sec
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12
Merge slight left
3.7 mi · 5 min
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13
Take the exit slight right toward I 20 West, I 59 South: Tuscaloosa
2224 ft · 54 sec
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14
Merge slight left
78.9 mi · 1 hr 25 min
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15
Take the exit slight right toward Union
974 ft · 29 sec
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16
Turn left onto M L King Highway
1.3 mi · 3 min · M L King Highway
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17
Merge slight left
4.6 mi · 6 min
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18
Turn left onto 1st Avenue
601 ft · 27 sec · 1st Avenue
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19
Merge slight right onto Greensboro Street
1546 ft · 33 sec · Greensboro Street
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20
Turn slight right onto Demopolis Highway
24 mi · 34 min · Demopolis Highway
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21
Turn left onto East Capitol Street
113 m · 7 sec · East Capitol Street
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22
Turn right onto North Strawberry Avenue
86 m · 12 sec · North Strawberry Avenue
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23
Arrive at your destination
0 m · 1 sec · North Strawberry Avenue
Car Route Details
A richer read on the saved driving route between Decatur and Demopolis.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 20 West
Merge slight left
78.9 mi · 01h 25m
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.
Sunny leaving Decatur and Sunny near Demopolis.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Demopolis?
The road trip is about 190.3 miles (306.2 km) and usually takes 03h 44m 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?
Bessemer is a useful midpoint, sitting about 95.2 miles from Decatur and 95 miles from Demopolis.
How much longer is the road route than the straight-line distance?
The direct path is about 152.4 miles (245.3 km), while the road route adds roughly 37.9 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 9:30 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.41 one way or $50.82 round trip. Estimated CO2 is about 59.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Decatur and Sunny near Demopolis.
Stop Ideas Near Bessemer
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Adamsville City Hall
Helena City Hall
Hoover Police Department (City Hall)
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Bessemer.
Birmingham
Brent, AL
Tuscaloosa
Marion, AL
Flight Path Map
This map shows the direct air route between Decatur and Demopolis. Straight-line distance: 152.42 mi (245.29 km).
#1 Decatur
The most populous city in Morgan County, Alabama.
| Population | 54,381 |
| Coordinates | 34.6059300, -86.9833400 |
| Altitude | 171 |
| Country | United States |
#2 Demopolis
City in Alabama
| Population | 6,539 |
| Coordinates | 32.5176400, -87.8364000 |
| Altitude | 37 |
| Country | United States |
End: Demopolis (-87.8364, 32.51764)
Estimated Travel Time
Distance: 306 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 20m |
| 40 mph (64.37 km/h) | 04h 45m |
| 50 mph (80.47 km/h) | 03h 48m |
| 60 mph (96.56 km/h) | 03h 10m |
| 70 mph (112.65 km/h) | 02h 43m |
| 80 mph (129 km/h) | 02h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $25.41 | $50.82 |
| Mid-grade | $4.26 | $28.58 | $57.16 |
| Premium | $4.63 | $31.03 | $62.07 |
| Diesel | $5.42 | $36.33 | $72.67 |
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 Alabama · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.