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Grass Lake Fish Stocking

Mason County, Washington · 1995–2026 on record

Source: Washington fish & wildlife agency· updated 2026-05-12

According to Washington fish & wildlife agency, Grass Lake was last stocked May 12, 2026 with Cutthroat Trout. Grass Lake has 23 stocking records on file, spanning 1995–2026, with about 30,123 fish stocked over that period.

May 12, 2026
Last stocked
30,123
Fish stocked
1
Species
23
Stocking records

When Grass Lake is stocked

Grass Lake is typically stocked in spring, most often in May — 18 stocking events in that peak month.

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

Nearby stocked waters

Other stocked waters near Grass Lake, freshest activity first.

Big Soos Creek

5 mi

King County · 3 species · 804 records

Last stocked July 2026

Newaukum Creek

4 mi

King County · 1 species · 18 records

Last stocked May 2026

Shadow Lake

5 mi

King County · 2 species · 45 records

Last stocked May 2026

Lake Sawyer

2 mi

King County · 4 species · 102 records

Last stocked May 2026

Holm Lake

3 mi

King County · 4 species · 39 records

Last stocked May 2026

Spring Lake

7 mi

King County · 1 species · 47 records

Last stocked May 2026

Stocking history

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

DateSpeciesNumberSource
May 12, 2026Cutthroat Trout1,500Washington fish & wildlife agency
May 15, 2024Cutthroat Trout1,500Washington fish & wildlife agency
May 24, 2022Cutthroat Trout1,500Washington fish & wildlife agency
May 21, 2020Cutthroat Trout1,535Washington fish & wildlife agency
May 16, 2018Cutthroat Trout1,523Washington fish & wildlife agency
May 12, 2016Cutthroat Trout1,770Washington fish & wildlife agency
May 28, 2014Cutthroat Trout1,650Washington fish & wildlife agency
May 22, 2012Cutthroat Trout1,500Washington fish & wildlife agency
Show 15 more stocking records →
DateSpeciesNumberSource
May 24, 2010Cutthroat Trout1,547Washington fish & wildlife agency
May 30, 2008Cutthroat Trout1,116Washington fish & wildlife agency
May 23, 2007Cutthroat Trout1,065Washington fish & wildlife agency
May 24, 2006Cutthroat Trout610Washington fish & wildlife agency
June 28, 2005Cutthroat Trout1,160Washington fish & wildlife agency
May 12, 2004Cutthroat Trout1,088Washington fish & wildlife agency
May 16, 2003Cutthroat Trout992Washington fish & wildlife agency
May 17, 2002Cutthroat Trout1,012Washington fish & wildlife agency
June 4, 2001Cutthroat Trout2,480Washington fish & wildlife agency
May 11, 2000Cutthroat Trout1,200Washington fish & wildlife agency
June 14, 1999Cutthroat Trout994Washington fish & wildlife agency
May 27, 1998Cutthroat Trout1,152Washington fish & wildlife agency
May 23, 1997Cutthroat Trout950Washington fish & wildlife agency
June 17, 1996Cutthroat Trout1,104Washington fish & wildlife agency
June 5, 1995Cutthroat Trout1,175Washington fish & wildlife agency

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

Frequently asked

When was Grass Lake last stocked?

According to Washington fish & wildlife agency, Grass Lake was last stocked May 12, 2026 with Cutthroat Trout.

What fish species are stocked in Grass Lake?

Grass Lake is stocked with Cutthroat Trout.

What time of year is Grass Lake stocked?

Grass Lake is typically stocked in spring, most often in May.

How often is Grass Lake stocked?

Grass Lake is stocked intermittently — 23 recorded stockings between 1995 and 2026.

How many fish have been stocked in Grass Lake?

About 30,123 fish have been stocked in Grass Lake across 23 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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