Moss Lake Fish Stocking
King County, Washington · 2004–2026 on record
According to Washington fish & wildlife agency, Moss Lake was last stocked July 9, 2026 with Cutthroat Trout. Moss Lake has 20 stocking records on file, spanning 2004–2026, with about 2,650 fish stocked over that period.
When Moss Lake is stocked
Moss Lake is typically stocked in summer, most often in August — 5 stocking events in that peak month.
By species
Angler's Field Guide
Fishing Tips & Stocking Guide for Moss Lake
Practical advice on fish behavior, recommended tackle, and state regulations for anglers fishing in King County, Washington.
Post-Plant Behavior & Timing
Hatchery-raised fish are conditioned to pelleted feed and open raceways. Following a release into Moss Lake, they typically congregate in schools near public access points, boat ramps, or inlets for the first 24 to 48 hours while adjusting to natural water conditions.
Since Moss Lake was last stocked July 9, 2026, anglers visiting within 1 to 2 weeks of a reported event generally experience the highest activity before fish disperse into deeper cover.
State Regulations & Licensing
- •Fishing License: A valid Washington freshwater fishing license is required for anglers age 16 and older.Purchase Washington license online →
- •Official Rules & Limits: Bag limits, bait restrictions, and seasonal boundaries are set by Washington fish & wildlife agency.Official Washington regulations guidebook →
- •Ethical Conservation: Use barbless hooks and keep fish submerged in water during unhooking.Trout Thermal Advisory: When water temperatures rise above 68°F (20°C), released trout face severe mortality from thermal exhaustion. Target warmwater species or fish early in the morning when lakes and streams warm up.
Recommended Tackle & Presentations
Techniques tailored to the species stocked in Moss Lake:
Stocked Trout Tactics
Use light 4–6 lb monofilament or fluorocarbon line. Float scented dough bait (PowerBait) 12–18" off bottom using a sliding slip-sinker rig with a size 14–16 treble hook. For active casting, throw 1/16 to 1/8 oz inline spinners (Panther Martin, Rooster Tail) or small spoons (Kastmaster) along drop-offs.
Cutthroat Trout Profile Tips
Known for being relatively easy to catch on dry flies, making it a favorite of western fly anglers; many subspecies are managed under catch-and-release rules to protect native populations.
Recommended Tackle for Moss Lake
Field-tested tackle and presentations matched to the species stocked here.
Berkley PowerBait Floating Trout Dough
Hatchery-raised trout are conditioned to pelleted scents; scented dough floated 12–18 inches off bottom consistently triggers strikes.
Panther Martin Classic Teardrop Inline Spinner
The heavy convex blade spins instantly upon retrieval, sending vibration through the water that triggers aggressive reaction bites along drop-offs.
Sliding Sinker & Treble Hook Rigging Kit
Sliding egg sinkers allow cautious trout to run with bait without feeling line drag, while size 14–16 treble hooks keep dough bait securely pinned.
As an Amazon Associate, StockedWaters earns from qualifying purchases at no additional cost to you. Recommendations are chosen for hatchery-conditioned fish behavior and ethical rigging. We may receive a referral commission if you buy through these links. Read our editorial policy & standards.
Nearby stocked waters
Other stocked waters near Moss Lake, freshest activity first.
Langlois Lake
4 miKing County · 5 species · 102 records
Last stocked April 2026
Lake Margaret
6 miKing County · 2 species · 78 records
Last stocked April 2026
Moss Lake
0 miLewis County · 1 species · 14 records
Last stocked September 2025
Tolt River
5 miKing County · 2 species · 27 records
Last stocked February 2023
Drunken Charlie Lake
5 miKing County · 1 species · 21 records
Last stocked September 2021
Stossel Creek
1 miKing County · 2 species · 7 records
Last stocked April 2018
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Source |
|---|---|---|---|
| July 9, 2026 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| June 22, 2025 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| July 12, 2024 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| July 19, 2023 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| August 7, 2022 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| August 7, 2021 | Cutthroat Trout | 200 | Washington fish & wildlife agency |
| June 19, 2020 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| June 20, 2019 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
Show 12 more stocking records →
| Date | Species | Number | Source |
|---|---|---|---|
| October 29, 2018 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| November 2, 2017 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| October 15, 2015 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| October 22, 2014 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| November 2, 2013 | Cutthroat Trout | 50 | Washington fish & wildlife agency |
| October 16, 2013 | Cutthroat Trout | 50 | Washington fish & wildlife agency |
| August 24, 2011 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| August 27, 2010 | Cutthroat Trout | 100 | Washington fish & wildlife agency |
| July 15, 2008 | Cutthroat Trout | 150 | Washington fish & wildlife agency |
| August 23, 2007 | Cutthroat Trout | 300 | Washington fish & wildlife agency |
| September 13, 2006 | Cutthroat Trout | 300 | Washington fish & wildlife agency |
| May 23, 2004 | Cutthroat Trout | 300 | Washington fish & wildlife agency |
The reporting agency did not include fish sizes for this water.
Frequently asked
When was Moss Lake last stocked?
According to Washington fish & wildlife agency, Moss Lake was last stocked July 9, 2026 with Cutthroat Trout.
What fish species are stocked in Moss Lake?
Moss Lake is stocked with Cutthroat Trout.
What time of year is Moss Lake stocked?
Moss Lake is typically stocked in summer, most often in August.
How often is Moss Lake stocked?
Moss Lake is stocked intermittently — 20 recorded stockings between 2004 and 2026.
How many fish have been stocked in Moss Lake?
About 2,650 fish have been stocked in Moss Lake across 20 recorded events since 2004, per Washington fish & wildlife agency.
Do you need a fishing license to fish Moss Lake?
Yes, all anglers age 16 and older generally need a valid Washington freshwater fishing license. Always review current regulations from Washington fish & wildlife agency for site-specific rules, bag limits, or stamps.
How do you catch stocked trout in Moss Lake?
Freshly stocked trout in Moss Lake typically respond well to floating dough bait (such as PowerBait) floated 12–18 inches off bottom on light 4–6 lb leader, live nightcrawlers under a bobber, and small inline spinners or spoons retrieved along shorelines and drop-offs.