How far is Washington County, MO from St. Louis, MO?
The driving distance from Washington County, MO to St. Louis, MO is about 76.5 miles (123.1 km), with a travel time of about 01h 33m by car.
- The straight-line flight distance is about 58.9 miles (94.8 km).
- For a round trip, plan for roughly 03h 07m 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 01h 33m.
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.
City in Jefferson County, Missouri, United States
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 Washington County and St. Louis.
Turn-by-Turn Driving Directions
Step-by-step road directions between Washington County and St. Louis.
-
1
Start on the route
2765 ft · 2 min
-
2
Turn right
3.8 mi · 9 min
-
3
Turn right
1.4 mi · 3 min
-
4
Turn straight onto West High Street
1.5 mi · 2 min · West High Street
-
5
Turn left
22.6 mi · 37 min
-
6
Turn right onto Amvets Drive
1.1 mi · 2 min · Amvets Drive
-
7
At the end of the road, turn left onto South Main Street
1.1 mi · 2 min · South Main Street
-
8
Turn right onto Fountain City Road
1.2 km · 2 min · Fountain City Road
-
9
Turn right
4.2 mi · 5 min
-
10
Take the ramp left toward US 67 North: Festus, Crystal City
1377 ft · 18 sec
-
11
Merge slight left
5.7 mi · 7 min
-
12
Keep slight right
1750 ft · 27 sec
-
13
Take the exit straight toward I 55 North: Saint Louis
1735 ft · 49 sec
-
14
Merge slight left
20.5 mi · 22 min
-
15
Continue on Rosa Parks Highway
12.5 mi · 16 min · Rosa Parks Highway
-
16
Take the exit slight right toward MO 30 East: Gravois Avenue
1001 ft · 24 sec
-
17
Turn slight right onto Gravois Avenue
1044 ft · 27 sec · Gravois Avenue
-
18
Continue on South Tucker Boulevard
1.3 mi · 3 min · South Tucker Boulevard
-
19
Turn right onto Market Street
26 m · 2 sec · Market Street
-
20
Arrive at your destination
0 m · 1 sec · Market Street
Car Route Details
A richer read on the saved driving route between Washington County and St. Louis.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Longest stretch
Turn left
22.6 mi · 00h 37m
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 Washington County and Showers And Thunderstorms near St. Louis.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Washington County to St. Louis?
The road trip is about 76.5 miles (123.1 km) and usually takes 01h 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?
Olympian Village is a useful midpoint, sitting about 39.1 miles from Washington County and 37.3 miles from St. Louis.
How much longer is the road route than the straight-line distance?
The direct path is about 58.9 miles (94.8 km), while the road route adds roughly 17.6 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 3:22 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.73 one way or $21.47 round trip. Estimated CO2 is about 24 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Washington County and Showers And Thunderstorms near St. Louis.
Stop Ideas Near Olympian Village
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 Olympian Village.
Kirkwood
Gateway Transportation Center
Washington
Alton
Flight Path Map
This map shows the direct air route between Washington County and St. Louis. Straight-line distance: 58.93 mi (94.84 km).
#1 Washington County
County in Missouri, United States
| Population | 24,604 |
| Coordinates | 37.9616800, -90.8774200 |
| Altitude | 292 |
| Country | United States |
#2 St. Louis
The second most populous city in Missouri and the center of the St.
| Population | 315,685 |
| Coordinates | 38.6272700, -90.1978900 |
| Altitude | 142 |
| Country | United States |
End: Market Street (-90.197859, 38.627348)
Estimated Travel Time
Distance: 123 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 32m |
| 40 mph (64.37 km/h) | 01h 54m |
| 50 mph (80.47 km/h) | 01h 31m |
| 60 mph (96.56 km/h) | 01h 16m |
| 70 mph (112.65 km/h) | 01h 05m |
| 80 mph (129 km/h) | 00h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.98 | $10.73 | $21.47 |
| Mid-grade | $4.34 | $11.72 | $23.44 |
| Premium | $4.71 | $12.71 | $25.42 |
| Diesel | $5.99 | $16.17 | $32.34 |
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 Missouri · Oct 15, 2026