How far is Marysville, WA from Mercer Island, WA?
The driving distance from Marysville, WA to Mercer Island, WA is about 38.4 miles (61.8 km), with a travel time of about 00h 52m by car.
- The straight-line flight distance is about 33.3 miles (53.6 km).
- For a round trip, plan for roughly 01h 45m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
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 00h 52m.
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 Snohomish County, Washington, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Marysville and Mercer Island.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marysville and Mercer Island.
-
1
Start on State Avenue
2860 ft · 1 min · State Avenue
-
2
Enter the roundabout and take exit 1 toward State Route 529
21 m · 1 sec · State Route 529
-
3
Exit the roundabout onto State Route 529
31 m · 2 sec · State Route 529
-
4
Take the ramp straight toward I 5
1551 ft · 38 sec
-
5
Merge slight left
15.2 mi · 19 min
-
6
Take the exit slight right toward I 405 South: Bellevue, Renton
1.5 km · 1 min
-
7
Merge slight left
1.5 km · 1 min
-
8
Keep slight right
17.1 mi · 21 min
-
9
Take the exit slight right toward I 90: Spokane, Seattle
2527 ft · 1 min
-
10
Keep slight right to continue on I 90 West: Seattle
964 ft · 24 sec
-
11
Keep slight left to continue on I 90 West: Bellevue Way, Seattle, Mercer Island
1226 ft · 30 sec
-
12
Keep slight right to continue on I 90 West: Seattle, Mercer Island
2260 ft · 55 sec
-
13
Merge slight left
2593 ft · 37 sec
-
14
Take the exit slight right toward East Mercer Way
1561 ft · 46 sec
-
15
Turn left onto East Mercer Way
101 m · 11 sec · East Mercer Way
-
16
Turn sharp right onto Southeast 36th Street
2214 ft · 1 min · Southeast 36th Street
-
17
Continue on Gallagher Hill Road
1478 ft · 43 sec · Gallagher Hill Road
-
18
Turn right onto Southeast 40th Street
1344 ft · 46 sec · Southeast 40th Street
-
19
Turn left onto 86th Avenue Southeast
1325 ft · 53 sec · 86th Avenue Southeast
-
20
Turn left onto Southeast 42nd Street
539 ft · 24 sec · Southeast 42nd Street
-
21
Arrive at your destination
0 m · 1 sec · Southeast 42nd Street
Car Route Details
A richer read on the saved driving route between Marysville and Mercer Island.
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 405 South
Keep slight right
17.1 mi · 00h 21m
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.
Mostly Cloudy leaving Marysville and Mostly Cloudy near Mercer Island.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Marysville to Mercer Island?
The road trip is about 38.4 miles (61.8 km) and usually takes 00h 52m 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?
Brier is a useful midpoint, sitting about 19.2 miles from Marysville and 19.2 miles from Mercer Island.
How much longer is the road route than the straight-line distance?
The direct path is about 33.3 miles (53.6 km), while the road route adds roughly 5.1 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 PDT. If you want a more comfortable same-day return, try to leave by 4:44 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.12 one way or $14.23 round trip. Estimated CO2 is about 12.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Marysville and Mostly Cloudy near Mercer Island.
Stop Ideas Near Brier
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 Brier.
Edmonds station
Seattle (Ferry - Pier 69), Washington
King Street Station
Everett Station
Flight Path Map
This map shows the direct air route between Marysville and Mercer Island. Straight-line distance: 33.31 mi (53.6 km).
#1 Marysville
The most populous city in Snohomish County, Washington.
| Population | 71,392 |
| Coordinates | 48.0517600, -122.1770800 |
| Altitude | 6 |
| Country | United States |
#2 Mercer Island
Island in the United States of America
| Population | 25,912 |
| Coordinates | 47.5706500, -122.2220700 |
| Altitude | 102 |
| Country | United States |
End: Mercer Island (-122.22207, 47.57065)
Estimated Travel Time
Distance: 62 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 16m |
| 40 mph (64.37 km/h) | 00h 57m |
| 50 mph (80.47 km/h) | 00h 46m |
| 60 mph (96.56 km/h) | 00h 38m |
| 70 mph (112.65 km/h) | 00h 32m |
| 80 mph (129 km/h) | 00h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $7.12 | $14.23 |
| Mid-grade | $5.57 | $7.57 | $15.14 |
| Premium | $5.77 | $7.85 | $15.70 |
| Diesel | $5.47 | $7.44 | $14.87 |
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 Washington · Jun 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.