Home/ Washington/ Cowlitz County/ Lake Merwin
Stocked last season

Lake Merwin Fish Stocking

Cowlitz County, Washington · 1995 to 2026 on record

According to WDFW records, Lake Merwin has 251 stocking records on file across 7 species. The most recent stocking season represented is 2026.

Lake Merwin stocking
Lake Merwin photo
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251
Stocking records
10,036,487
Fish reported stocked
7
Species
2026
Latest season

Stocking activity by season

32 seasons on record, most in the 1998 (25 records). Click a bar to jump to that season below.

6 records
2026 · 12,771 fish
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026

Stocking records per season (labelled by the season's end year). Washington's source reports by season, so records aren't broken out by month. Showing the most recent 25 of 32 seasons — the full history is listed below.

Most-stocked species

Kokanee 85 records
Rainbow 71 records
Tiger Muskie 31 records
Coho 29 records
Steelhead 24 records

Location

Exact coordinates not yet available · Cowlitz County

Map not available yet
We don't have coordinates for this water on file.

Stocking history

Values shown exactly as the agency reported them; species names are normalized for search.

SpeciesFish stockedSizePhase
Kokanee 5,710 Legals · SPEELYAI HATCHERY —
Rainbow 1,732 Legals · MERWIN HATCHERY —
Rainbow 826 Legals · MERWIN HATCHERY —
Rainbow 821 Legals · MERWIN HATCHERY —
Rainbow 1,732 Legals · MERWIN HATCHERY —
Tiger Muskie 1,950 Legals · MESEBERG HATCHERY —

A stocking record does not guarantee fish remain present or may legally be harvested. Check current Washington fishing regulations →

Quick facts

Latest season 2026
Most stocked Kokanee
Species Kokanee, Rainbow, Tiger Muskie, Coho, Steelhead, Chinook, Cutthroat
County Cowlitz
Seasons on record 1995 – 2026
Fish reported 10,036,487
Coordinates —

Data source

Compiled from public records published by the Washington Department of Fish and Wildlife. StockedSpots is independent and not affiliated with or endorsed by WDFW.

Source: Washington Department of Fish and Wildlife (WDFW). Data last checked September 1, 2026.
View WDFW source →

Frequently asked questions

WDFW records show Lake Merwin stocked with Kokanee, Rainbow, Tiger Muskie, Coho, Steelhead, Chinook, Cutthroat.

See something that looks off?

Every stocking record on StockedSpots is pulled directly from official state wildlife agency sources — you can see exactly where each state's data comes from on our data sources page. If a record looks wrong, or you'd like a page reviewed or removed, let us know and we'll look into it.

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