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Lake Merwin Fish Stocking

Cowlitz County, Washington · 1995–2026 on record

Source: Washington fish & wildlife agency· updated 2026-07-13

According to Washington fish & wildlife agency, Lake Merwin was last stocked July 13, 2026 with Rainbow Trout. Lake Merwin has 251 stocking records on file, spanning 1995–2026, with about 10,036,487 fish stocked over that period.

July 13, 2026
Last stocked
10,036,487
Fish stocked
7
Species
251
Stocking records

When Lake Merwin is stocked

Lake Merwin is typically stocked in spring and summer, most often in July — 61 stocking events in that peak month.

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

Nearby stocked waters

Other stocked waters near Lake Merwin, freshest activity first.

Battle Ground Lake

12 mi

Clark County · 4 species · 546 records

Last stocked May 2026

Merrill Lake

10 mi

Cowlitz County · 3 species · 22 records

Last stocked October 2023

Houghton Creek

11 mi

1 species · 12 records

Last stocked April 2018

Pup Creek

6 mi

1 species · 15 records

Last stocked March 2018

Indian George Creek

3 mi

1 species · 3 records

Last stocked November 2017

Lakeview Peak Lake

6 mi

Cowlitz County · 1 species · 11 records

Last stocked August 2014

Stocking history

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

DateSpeciesNumberSource
July 13, 2026Rainbow Trout826Washington fish & wildlife agency
July 13, 2026Rainbow Trout821Washington fish & wildlife agency
July 13, 2026Rainbow Trout1,732Washington fish & wildlife agency
July 13, 2026Rainbow Trout1,732Washington fish & wildlife agency
April 29, 2026Tiger Trout1,950Washington fish & wildlife agency
February 23, 2026Kokanee5,710Washington fish & wildlife agency
October 1, 2025Kokanee35,570Washington fish & wildlife agency
July 14, 2025Rainbow Trout783Washington fish & wildlife agency
Show 42 more stocking records →
DateSpeciesNumberSource
July 14, 2025Rainbow Trout784Washington fish & wildlife agency
July 14, 2025Rainbow Trout1,699Washington fish & wildlife agency
July 14, 2025Rainbow Trout1,699Washington fish & wildlife agency
April 29, 2025Tiger Trout1,939Washington fish & wildlife agency
March 1, 2025Kokanee50,700Washington fish & wildlife agency
October 7, 2024Kokanee45,750Washington fish & wildlife agency
July 15, 2024Rainbow Trout942Washington fish & wildlife agency
July 15, 2024Rainbow Trout942Washington fish & wildlife agency
July 15, 2024Rainbow Trout788Washington fish & wildlife agency
July 15, 2024Rainbow Trout765Washington fish & wildlife agency
May 6, 2024Tiger Trout869Washington fish & wildlife agency
March 1, 2024Kokanee52,850Washington fish & wildlife agency
October 5, 2023Kokanee40,500Washington fish & wildlife agency
July 10, 2023Rainbow Trout668Washington fish & wildlife agency
July 10, 2023Rainbow Trout906Washington fish & wildlife agency
July 10, 2023Rainbow Trout668Washington fish & wildlife agency
July 10, 2023Rainbow Trout891Washington fish & wildlife agency
May 9, 2023Tiger Trout2,020Washington fish & wildlife agency
October 9, 2022Kokanee22,380Washington fish & wildlife agency
August 29, 2022Kokanee49,540Washington fish & wildlife agency
July 13, 2022Rainbow Trout583Washington fish & wildlife agency
July 13, 2022Rainbow Trout979Washington fish & wildlife agency
July 13, 2022Rainbow Trout583Washington fish & wildlife agency
July 13, 2022Rainbow Trout988Washington fish & wildlife agency
July 13, 2022Kokanee22,860Washington fish & wildlife agency
May 9, 2022Tiger Trout1,600Washington fish & wildlife agency
January 31, 2022Kokanee42,680Washington fish & wildlife agency
October 29, 2021Kokanee48,580Washington fish & wildlife agency
June 8, 2021Rainbow Trout1,224Washington fish & wildlife agency
May 10, 2021Tiger Trout1,600Washington fish & wildlife agency
April 19, 2021Rainbow Trout3,000Washington fish & wildlife agency
April 19, 2021Rainbow Trout1,207Washington fish & wildlife agency
March 1, 2021Kokanee32,870Washington fish & wildlife agency
December 18, 2020Kokanee15,580Washington fish & wildlife agency
September 9, 2020Kokanee46,010Washington fish & wildlife agency
June 22, 2020Rainbow Trout1,065Washington fish & wildlife agency
June 17, 2020Rainbow Trout1,032Washington fish & wildlife agency
May 12, 2020Tiger Trout1,600Washington fish & wildlife agency
March 1, 2020Kokanee46,730Washington fish & wildlife agency
October 28, 2019Kokanee45,800Washington fish & wildlife agency
July 15, 2019Rainbow Trout571Washington fish & wildlife agency
July 15, 2019Rainbow Trout708Washington fish & wildlife agency

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

Showing 50 of 251 stocking records.

Frequently asked

When was Lake Merwin last stocked?

According to Washington fish & wildlife agency, Lake Merwin was last stocked July 13, 2026 with Rainbow Trout.

What fish species are stocked in Lake Merwin?

Lake Merwin is stocked with Rainbow Trout, Tiger Trout, Kokanee, Steelhead, Coho Salmon, Cutthroat Trout, and Chinook Salmon.

What time of year is Lake Merwin stocked?

Lake Merwin is typically stocked in spring and summer, most often in July.

How often is Lake Merwin stocked?

Lake Merwin has been stocked about 8 times a year — 251 recorded stockings between 1995 and 2026.

How many fish have been stocked in Lake Merwin?

About 10,036,487 fish have been stocked in Lake Merwin across 251 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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