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Mason Lake Fish Stocking

Mason County, Washington · 1995–2026 on record

Source: Washington fish & wildlife agency· updated 2026-06-08

According to Washington fish & wildlife agency, Mason Lake was last stocked June 8, 2026 with Rainbow Trout. Mason Lake has 196 stocking records on file, spanning 1995–2026, with about 4,823,015 fish stocked over that period.

June 8, 2026
Last stocked
4,823,015
Fish stocked
4
Species
196
Stocking records

When Mason Lake is stocked

Mason Lake is typically stocked in summer and fall, most often in June — 50 stocking events in that peak month.

How Mason Lake's stockings spread across the calendar year.

Angler's Field Guide

Fishing Tips & Stocking Guide for Mason Lake

Practical advice on fish behavior, recommended tackle, and state regulations for anglers fishing in Mason County, Washington.

Post-Plant Behavior & Timing

Hatchery-raised fish are conditioned to pelleted feed and open raceways. Following a release into Mason 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 Mason Lake was last stocked June 8, 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 Mason 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.

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).

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.

Kokanee Profile Tips

Usually caught by trolling small lures or bait behind flashers at depth; a major fall spectacle when spawning runs turn red in tributary streams.

Recommended Tackle for Mason Lake

Field-tested tackle and presentations matched to the species stocked here.

Hatchery Trout FavoriteBerkley

Berkley PowerBait Floating Trout Dough

Hatchery-raised trout are conditioned to pelleted scents; scented dough floated 12–18 inches off bottom consistently triggers strikes.

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Top Casting LurePanther Martin

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.

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Essential RiggingEagle Claw

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.

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Kokanee & Salmon FavoriteMack's Lure

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.

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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 Mason Lake, freshest activity first.

Spencer Lake

5 mi

Mason County · 2 species · 295 records

Last stocked May 2026

Benson Lake

2 mi

Mason County · 3 species · 132 records

Last stocked May 2026

Jiggs Lake

5 mi

Mason County · 2 species · 48 records

Last stocked May 2026

Emerald Lake Ponds

4 mi

Mason County · 1 species · 4 records

Last stocked May 2026

Mill Pond

6 mi

Pacific County · 1 species · 36 records

Last stocked May 2026

Mill Pond

6 mi

King County · 1 species · 58 records

Last stocked April 2026

Stocking history

Most recent stockings first. Dates shown at the precision the agency reported.

DateSpeciesNumberSource
June 8, 2026Rainbow Trout31,677Washington fish & wildlife agency
April 7, 2026Rainbow Trout56,100Washington fish & wildlife agency
April 1, 2026Rainbow Trout33,190Washington fish & wildlife agency
November 10, 2025Rainbow Trout2,825Washington fish & wildlife agency
November 10, 2025Rainbow Trout200Washington fish & wildlife agency
October 15, 2025Rainbow Trout9,500Washington fish & wildlife agency
October 14, 2025Rainbow Trout4,616Washington fish & wildlife agency
October 14, 2025Rainbow Trout1,147Washington fish & wildlife agency
Show 42 more stocking records →
DateSpeciesNumberSource
October 13, 2025Rainbow Trout6,705Washington fish & wildlife agency
August 19, 2025Rainbow Trout39,735Washington fish & wildlife agency
August 18, 2025Rainbow Trout43,540Washington fish & wildlife agency
August 18, 2025Rainbow Trout47,120Washington fish & wildlife agency
August 14, 2025Rainbow Trout3,710Washington fish & wildlife agency
June 3, 2025Rainbow Trout29,460Washington fish & wildlife agency
May 12, 2025Kokanee49,610Washington fish & wildlife agency
January 7, 2025Rainbow Trout1,683Washington fish & wildlife agency
January 7, 2025Rainbow Trout1,994Washington fish & wildlife agency
October 21, 2024Rainbow Trout21,190Washington fish & wildlife agency
October 21, 2024Rainbow Trout14,865Washington fish & wildlife agency
October 15, 2024Rainbow Trout7,225Washington fish & wildlife agency
October 15, 2024Rainbow Trout16,900Washington fish & wildlife agency
October 14, 2024Rainbow Trout6,560Washington fish & wildlife agency
October 14, 2024Rainbow Trout4,240Washington fish & wildlife agency
September 30, 2024Rainbow Trout5,075Washington fish & wildlife agency
September 30, 2024Rainbow Trout11,980Washington fish & wildlife agency
September 12, 2024Rainbow Trout1,270Washington fish & wildlife agency
August 26, 2024Rainbow Trout109,160Washington fish & wildlife agency
August 20, 2024Rainbow Trout26,917Washington fish & wildlife agency
August 19, 2024Rainbow Trout21,688Washington fish & wildlife agency
June 4, 2024Rainbow Trout150Washington fish & wildlife agency
June 4, 2024Rainbow Trout2Washington fish & wildlife agency
May 29, 2024Rainbow Trout33,120Washington fish & wildlife agency
November 29, 2023Rainbow Trout1,925Washington fish & wildlife agency
October 24, 2023Rainbow Trout15,285Washington fish & wildlife agency
October 2, 2023Rainbow Trout9,985Washington fish & wildlife agency
September 29, 2023Cutthroat Trout6,200Washington fish & wildlife agency
August 29, 2023Rainbow Trout187,435Washington fish & wildlife agency
August 16, 2023Rainbow Trout2,830Washington fish & wildlife agency
May 31, 2023Kokanee43,165Washington fish & wildlife agency
May 30, 2023Rainbow Trout37,100Washington fish & wildlife agency
May 28, 2023Rainbow Trout200Washington fish & wildlife agency
May 28, 2023Rainbow Trout3Washington fish & wildlife agency
April 26, 2023Cutthroat Trout7,460Washington fish & wildlife agency
December 1, 2022Rainbow Trout5,705Washington fish & wildlife agency
November 8, 2022Rainbow Trout8,310Washington fish & wildlife agency
October 25, 2022Rainbow Trout11,473Washington fish & wildlife agency
September 7, 2022Rainbow Trout1,690Washington fish & wildlife agency
August 30, 2022Rainbow Trout28,660Washington fish & wildlife agency
August 29, 2022Rainbow Trout46,850Washington fish & wildlife agency
May 24, 2022Rainbow Trout30,968Washington fish & wildlife agency

The reporting agency did not include fish sizes for this water.

Showing 50 of 196 stocking records.

Frequently asked

When was Mason Lake last stocked?

According to Washington fish & wildlife agency, Mason Lake was last stocked June 8, 2026 with Rainbow Trout.

What fish species are stocked in Mason Lake?

Mason Lake is stocked with Rainbow Trout, Kokanee, Cutthroat Trout, and Coho Salmon.

What time of year is Mason Lake stocked?

Mason Lake is typically stocked in summer and fall, most often in June.

How often is Mason Lake stocked?

Mason Lake has been stocked about 6 times a year — 196 recorded stockings between 1995 and 2026.

How many fish have been stocked in Mason Lake?

About 4,823,015 fish have been stocked in Mason Lake across 196 recorded events since 1995, per Washington fish & wildlife agency.

Do you need a fishing license to fish Mason 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 Mason Lake?

Freshly stocked trout in Mason 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.

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