Big Soos Creek Fish Stocking
King County, Washington · 1995–2026 on record
According to Washington fish & wildlife agency, Big Soos Creek was last stocked July 21, 2026 with Coho Salmon. Big Soos Creek has 804 stocking records on file, spanning 1995–2026, with about 129,331,748 fish stocked over that period.
When Big Soos Creek is stocked
Big Soos Creek is typically stocked in spring, most often in May — 303 stocking events in that peak month.
Angler's Field Guide
Fishing Tips & Stocking Guide for Big Soos Creek
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 Big Soos Creek, 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 Big Soos Creek was last stocked July 21, 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 Big Soos Creek:
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.
Kokanee & Salmon Tactics
Troll small dodgers followed by micro-hoochies or wedding ring spinners tipped with shoepeg corn. Use downriggers or lead-core line to reach cooler thermocline depths (typically 20–50 ft in summer).
Coho Salmon Profile Tips
A popular fall target in Washington's rivers and marine waters.
Chinook Salmon Profile Tips
A major sport and tribal fishery in Washington; trolled or jigged in Montana's larger reservoirs.
Recommended Tackle for Big Soos Creek
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.
Mack's Lure Classic Wedding Ring Spinner
A classic Western trolling lure designed to be tipped with shoepeg corn and run behind a dodger in deep thermoclines.
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 Big Soos Creek, freshest activity first.
Lake Tapps
6 miPierce County · 3 species · 41 records
Last stocked June 2026
Newaukum Creek
5 miKing County · 1 species · 18 records
Last stocked May 2026
Grass Lake
5 miMason County · 1 species · 23 records
Last stocked May 2026
Lake Killarney
6 miKing County · 2 species · 42 records
Last stocked May 2026
Lake Fenwick
6 miKing County · 2 species · 49 records
Last stocked May 2026
Lake Dolloff
5 miKing County · 2 species · 40 records
Last stocked May 2026
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Source |
|---|---|---|---|
| July 21, 2026 | Coho Salmon | 443,463 | Washington fish & wildlife agency |
| July 10, 2026 | Coho Salmon | 122,000 | Washington fish & wildlife agency |
| July 10, 2026 | Coho Salmon | 130,000 | Washington fish & wildlife agency |
| May 12, 2026 | Chinook Salmon | 501,866 | Washington fish & wildlife agency |
| May 12, 2026 | Chinook Salmon | 499,592 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 36,000 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 36,000 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 36,000 | Washington fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Source |
|---|---|---|---|
| May 11, 2026 | Chinook Salmon | 220,991 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 28,001 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 36,000 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 36,000 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 36,000 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 36,000 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 28,000 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 36,000 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 183,863 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 119,259 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 28,046 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 407,831 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 103,062 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 28,008 | Washington fish & wildlife agency |
| May 11, 2026 | Chinook Salmon | 453,652 | Washington fish & wildlife agency |
| May 1, 2026 | Chinook Salmon | 282,381 | Washington fish & wildlife agency |
| April 15, 2026 | Steelhead | 49,979 | Washington fish & wildlife agency |
| April 9, 2026 | Coho Salmon | 22,216 | Washington fish & wildlife agency |
| April 9, 2026 | Coho Salmon | 22,842 | Washington fish & wildlife agency |
| April 9, 2026 | Coho Salmon | 262,661 | Washington fish & wildlife agency |
| April 3, 2026 | Coho Salmon | 2 | Washington fish & wildlife agency |
| April 3, 2026 | Coho Salmon | 22,842 | Washington fish & wildlife agency |
| April 3, 2026 | Coho Salmon | 233,246 | Washington fish & wildlife agency |
| April 3, 2026 | Coho Salmon | 22,216 | Washington fish & wildlife agency |
| February 25, 2026 | Coho Salmon | 350 | Washington fish & wildlife agency |
| June 5, 2025 | Chinook Salmon | 118,902 | Washington fish & wildlife agency |
| June 5, 2025 | Chinook Salmon | 270,554 | Washington fish & wildlife agency |
| June 5, 2025 | Chinook Salmon | 105,441 | Washington fish & wildlife agency |
| May 28, 2025 | Chinook Salmon | 350,590 | Washington fish & wildlife agency |
| May 28, 2025 | Chinook Salmon | 50,198 | Washington fish & wildlife agency |
| May 28, 2025 | Chinook Salmon | 50,274 | Washington fish & wildlife agency |
| May 23, 2025 | Chinook Salmon | 50,097 | Washington fish & wildlife agency |
| May 23, 2025 | Chinook Salmon | 146,067 | Washington fish & wildlife agency |
| May 23, 2025 | Chinook Salmon | 50,528 | Washington fish & wildlife agency |
| May 23, 2025 | Chinook Salmon | 420,805 | Washington fish & wildlife agency |
| May 23, 2025 | Chinook Salmon | 226,488 | Washington fish & wildlife agency |
| May 22, 2025 | Chinook Salmon | 418,716 | Washington fish & wildlife agency |
| May 22, 2025 | Chinook Salmon | 224,169 | Washington fish & wildlife agency |
| May 22, 2025 | Chinook Salmon | 50,097 | Washington fish & wildlife agency |
| May 22, 2025 | Chinook Salmon | 51,080 | Washington fish & wildlife agency |
| May 16, 2025 | Chinook Salmon | 50,538 | Washington fish & wildlife agency |
| May 16, 2025 | Chinook Salmon | 50,651 | Washington fish & wildlife agency |
The reporting agency did not include fish sizes for this water.
Showing 50 of 500 stocking records.
Frequently asked
When was Big Soos Creek last stocked?
According to Washington fish & wildlife agency, Big Soos Creek was last stocked July 21, 2026 with Coho Salmon.
What fish species are stocked in Big Soos Creek?
Big Soos Creek is stocked with Coho Salmon, Chinook Salmon, and Steelhead.
What time of year is Big Soos Creek stocked?
Big Soos Creek is typically stocked in spring, most often in May.
How often is Big Soos Creek stocked?
Big Soos Creek has been stocked about 25 times a year — 804 recorded stockings between 1995 and 2026.
How many fish have been stocked in Big Soos Creek?
About 129,331,748 fish have been stocked in Big Soos Creek across 804 recorded events since 1995, per Washington fish & wildlife agency.
Do you need a fishing license to fish Big Soos Creek?
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 Big Soos Creek?
Freshly stocked trout in Big Soos Creek 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.