Lake Boren Fish Stocking
King County, Washington · 1995–2026 on record
According to Washington fish & wildlife agency, Lake Boren was last stocked May 26, 2026 with Rainbow Trout. Lake Boren has 38 stocking records on file, spanning 1995–2026, with about 84,612 fish stocked over that period.
When Lake Boren is stocked
Lake Boren is typically stocked in spring, most often in March — 13 stocking events in that peak month.
By species
Angler's Field Guide
Fishing Tips & Stocking Guide for Lake Boren
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 Lake Boren, 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 Lake Boren was last stocked May 26, 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 Lake Boren:
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.
Rainbow Trout Profile Tips
The most commonly targeted stocked trout in the country, taken on bait, spinners, and flies alike; a common first fish for new anglers.
Recommended Tackle for Lake Boren
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 Lake Boren, freshest activity first.
Issaquah Creek
5 miKing County · 4 species · 520 records
Last stocked May 2026
May Creek
2 miSnohomish County · 3 species · 23 records
Last stocked April 2026
May Creek
2 miKing County · 2 species · 23 records
Last stocked April 2026
Lake Sammamish
6 miKing County · 4 species · 25 records
Last stocked March 2024
Black River
6 mi1 species · 1 records
Last stocked March 2024
Duwamish River
7 miKing County · 3 species · 5 records
Last stocked May 2023
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Source |
|---|---|---|---|
| May 26, 2026 | Rainbow Trout | 1,350 | Washington fish & wildlife agency |
| May 12, 2025 | Rainbow Trout | 1,150 | Washington fish & wildlife agency |
| May 3, 2024 | Rainbow Trout | 1,500 | Washington fish & wildlife agency |
| April 25, 2023 | Rainbow Trout | 1,650 | Washington fish & wildlife agency |
| May 10, 2022 | Rainbow Trout | 1,995 | Washington fish & wildlife agency |
| April 28, 2021 | Rainbow Trout | 1,530 | Washington fish & wildlife agency |
| April 23, 2020 | Rainbow Trout | 1,357 | Washington fish & wildlife agency |
| April 29, 2019 | Rainbow Trout | 1,200 | Washington fish & wildlife agency |
Show 30 more stocking records →
| Date | Species | Number | Source |
|---|---|---|---|
| May 3, 2018 | Rainbow Trout | 1,225 | Washington fish & wildlife agency |
| April 25, 2017 | Rainbow Trout | 1,200 | Washington fish & wildlife agency |
| May 18, 2016 | Rainbow Trout | 1,200 | Washington fish & wildlife agency |
| May 5, 2015 | Rainbow Trout | 1,200 | Washington fish & wildlife agency |
| April 22, 2014 | Rainbow Trout | 1,200 | Washington fish & wildlife agency |
| April 24, 2013 | Rainbow Trout | 1,200 | Washington fish & wildlife agency |
| May 2, 2012 | Rainbow Trout | 1,200 | Washington fish & wildlife agency |
| June 14, 2011 | Rainbow Trout | 22,000 | Washington fish & wildlife agency |
| March 25, 2011 | Rainbow Trout | 1,500 | Washington fish & wildlife agency |
| March 17, 2010 | Rainbow Trout | 100 | Washington fish & wildlife agency |
| March 17, 2010 | Rainbow Trout | 1,000 | Washington fish & wildlife agency |
| June 15, 2009 | Rainbow Trout | 3,300 | Washington fish & wildlife agency |
| March 16, 2009 | Rainbow Trout | 1,000 | Washington fish & wildlife agency |
| May 30, 2008 | Rainbow Trout | 10,000 | Washington fish & wildlife agency |
| March 26, 2008 | Rainbow Trout | 1,000 | Washington fish & wildlife agency |
| June 21, 2007 | Rainbow Trout | 3,000 | Washington fish & wildlife agency |
| March 20, 2007 | Rainbow Trout | 1,000 | Washington fish & wildlife agency |
| May 9, 2006 | Rainbow Trout | 3,000 | Washington fish & wildlife agency |
| April 4, 2006 | Rainbow Trout | 1,000 | Washington fish & wildlife agency |
| July 12, 2005 | Rainbow Trout | 3,000 | Washington fish & wildlife agency |
| March 29, 2005 | Rainbow Trout | 1,000 | Washington fish & wildlife agency |
| May 24, 2004 | Rainbow Trout | 400 | Washington fish & wildlife agency |
| March 23, 2004 | Rainbow Trout | 1,000 | Washington fish & wildlife agency |
| June 25, 2003 | Rainbow Trout | 3,000 | Washington fish & wildlife agency |
| March 13, 2001 | Rainbow Trout | 1,500 | Washington fish & wildlife agency |
| July 25, 2000 | Rainbow Trout | 2,100 | Washington fish & wildlife agency |
| March 17, 1998 | Rainbow Trout | 1,200 | Washington fish & wildlife agency |
| March 24, 1997 | Rainbow Trout | 1,500 | Washington fish & wildlife agency |
| March 20, 1996 | Rainbow Trout | 1,000 | Washington fish & wildlife agency |
| March 31, 1995 | Rainbow Trout | 855 | Washington fish & wildlife agency |
The reporting agency did not include fish sizes for this water.
Frequently asked
When was Lake Boren last stocked?
According to Washington fish & wildlife agency, Lake Boren was last stocked May 26, 2026 with Rainbow Trout.
What fish species are stocked in Lake Boren?
Lake Boren is stocked with Rainbow Trout.
What time of year is Lake Boren stocked?
Lake Boren is typically stocked in spring, most often in March.
How often is Lake Boren stocked?
Lake Boren is stocked intermittently — 38 recorded stockings between 1995 and 2026.
How many fish have been stocked in Lake Boren?
About 84,612 fish have been stocked in Lake Boren across 38 recorded events since 1995, per Washington fish & wildlife agency.
Do you need a fishing license to fish Lake Boren?
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 Lake Boren?
Freshly stocked trout in Lake Boren 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.