Washington species

Mountain Whitefish in Washington

Washington rules and water for mountain whitefish.

  • 15 dailylimit
  • 5.13 lbsrecord
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Photo of the fish itself, not a Washington water: Mike Cline, Public domain

Washington fish

mountain whitefish in the Evergreen State

Washington freshwater rules place mountain whitefish on the line labelled "Whitefish". Word for word, the row gives: No min. size. Daily limit 15.

WDFW credits Steven Becken with the record, 5.13 lbs out of Columbia River, Benton County in 1983. This guide links it to 56 Washington waters, beginning with Yakima River, Kalama River and Methow River. For 12 waters, the pamphlet prints a Special Rule about it. Its Latin name is Prosopium williamsoni.

15 dailylimit
5.13 lbsWDFW record
56water pages
12Special Rule waters
Freshwater rule

mountain whitefish in the 2026-27 freshwater table

Pamphlet rowWatersLimit as printedSeason
Whitefishall freshwaterNo min. size. Daily limit 15.Lakes, ponds, and reservoirs: year-round; rivers, streams and beaver ponds: Sat. before Memorial Day through Oct. 31 (p.23 general rule for game fish)

Limits and seasons as printed in the 2026-2027 Washington Sport Fishing Rules (WDFW pamphlet, in effect July 1, 2026 to June 30, 2027), PDF page 27 (pamphlet PDF; eRegulations statewide freshwater page), read October 31, 2026.

Other lines from the pamphlet

Special Rules

Waters with their own mountain whitefish rule

Labels like "whitefish" appear on 12 waters in the Special Rules tables.

Waters that break from statewide rules

Special Rules as printed in the 2026-2027 Washington Sport Fishing Rules (WDFW pamphlet, in effect July 1, 2026 to June 30, 2027), pamphlet page 26 (pamphlet PDF), read on eRegulations October 31, 2026.
Record

Record weight for Washington mountain whitefish

ListingWeightAnglerWaterDate
Mountain Whitefish5.13 lbsSteven BeckenColumbia River, Benton CountyNov. 30, 1983

WDFW sport fish records, read October 31, 2026; record list.

Where to look

Lakes, rivers and sound with mountain whitefish

Rivers with mountain whitefish

  • Yakima RiverKittitas County
  • Kalama RiverCowlitz County
  • Methow RiverOkanogan County
  • Wenatchee RiverChelan County
  • Grande Ronde RiverAsotin County
  • Chehalis RiverLewis County
  • Klickitat RiverKlickitat County
  • Black RiverThurston County
  • Okanogan RiverOkanogan County
  • Cowlitz RiverLewis County
  • Lewis RiverSkamania County
  • Kettle RiverFerry County
  • Pend Oreille RiverPend Oreille County
  • Similkameen River (Okanogan County)Okanogan County
  • Snake RiverWhitman County
  • Washougal RiverSkamania County
  • American RiverYakima County
  • Bumping RiverYakima County

WDFW Fish Washington and high lake layer species lists, WDFW SWIFD distribution, record waters and 2026 trout plants; largest waters first.

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Related fish

Kin of mountain whitefish in the WDFW tables

Photos

Photographs of fishing water around Mountain Whitefish

Jefferson County, Washington
Jefferson County
Photo: Jan Tik, CC BY 2.0
Sequim, Washington
Sequim
Photo: Ken Lund, CC BY-SA 2.0
Clark County, Washington
Clark County
Photo: PNWDawn, Public domain
Columbia River, Washington
Columbia River
Photo: Bonnie Moreland, Public domain
Answers

mountain whitefish in Washington: questions anglers bring

What does WDFW allow for mountain whitefish each day?

WDFW prints: No min. size. Daily limit 15.

How big is the Washington record mountain whitefish?

It weighed 5.13 lbs, out of Columbia River, Benton County in 1983; angler Steven Becken.

Where do mountain whitefish live in Washington?

It is on 56 pages, Yakima River, Kalama River and Methow River first.

Do Washington hatcheries release mountain whitefish?

No hatchery plant of it is on file for 2026.

On which Washington waters does the mountain whitefish rule shift?

On 12 waters the line changes.

Is the mountain whitefish season open now in Washington?

The row prints: Lakes, ponds, and reservoirs: year-round; rivers, streams and beaver ponds: Sat. before Memorial Day through Oct. 31 (p.23 general rule for game fish). An emergency rule may still close it.

Is a freshwater license enough for mountain whitefish?

Anglers 16 and older need a Washington Freshwater license ($39.95 resident, $115.85 nonresident for 2026-27) or a Combination license; salmon, steelhead and sturgeon also take a catch record card.

Who checks a new Washington mountain whitefish record?

WDFW verifies records at its offices after a certified-scale weighing witnessed by two people.

Pick Washington water for mountain whitefish

Ramps, limits and maps sit on each page above.