Lake Armstrong

Two miles north of Arlington. Open to fishing from the 4th Saturday in April to October 31. Catchable-size rainbow trout are stocked in the spring. Expect some carry-overs in the 1-1/2 pound range. Lake Armstrong access area on the south shore offers a boat ramp and toilets.

Two-pole fishing is allowed

Shoreline access: Good - Access at WDFW boat ramp.

Species you might catch

Lake information

County: Snohomish
Acreage: 30.10 ac.
Elevation: 139 ft.
Center: 48.226467, -122.123942
Open in Google Maps

Catchable fish plants

Release Location: LK ARMSTRONG (SNOH)
Stock Date Species Number Released Number of Fish Per Pound Facility
Apr 25, 2024 Rainbow 1,023 2.2 ARLINGTON HATCHERY
Apr 25, 2024 Rainbow 2,057 2.2 ARLINGTON HATCHERY
Apr 19, 2023 Rainbow 3,000 2.5 ARLINGTON HATCHERY
Apr 19, 2022 Rainbow 50 0.5 ARLINGTON HATCHERY
Apr 19, 2022 Rainbow 3,014 2.2 ARLINGTON HATCHERY
Apr 22, 2021 Rainbow 3,000 2.5 ARLINGTON HATCHERY
May 4, 2020 Rainbow 1,124 2.1 ARLINGTON HATCHERY
May 4, 2020 Rainbow 1,901 2.1 ARLINGTON HATCHERY
Apr 23, 2019 Rainbow 4,037 2.3 ARLINGTON HATCHERY
Apr 24, 2018 Rainbow 4,000 2.5 ARLINGTON HATCHERY

Fishing prospects calendar

Rainbow trout

Fishing success for Rainbow Trout is generally best in the spring when thousands of fish are stocked statewide, but they can be caught year-round in most waters with a little patience and persistence. Success remains high into June and gradually declines as water temperatures increase and fish move offshore to stay cool. Fish that escaped the spring harvest return to the nearshore areas in the fall as waters cool off. Some waters may also be stocked again in the fall further boosting catch rates.
Chart showing fishing prospects throughout the calendar year


Lake Armstrong
Photo by WDFW