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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.

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.

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How this is calculated: compiled automatically from Washington fish & wildlife agency open data — normalized, date-validated, and shown only at the precision the agency reported. Sources & methodology →

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