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Mayfield Reservoir trout stocking

Lewis County, Washington · lake

Mayfield Reservoir was last stocked 4 weeks ago (Aug 25, 2026). We have 43 stockings on record since Apr 3, 2025, 19 in the last 12 months (72,001 fish). Most stockings come in May to August. Species stocked: rainbow trout.

Last stocked
4 weeks ago
Aug 25, 2026
Next planned
Not announced
Last 12 months
19 stockings
72,001 fish
On record
43 stockings
since Apr 3, 2025

When is Mayfield Reservoir stocked?

Most stockings come in May to August. Stocked 19 times in 2026, usually on Tuesdays, about every 7 days.

By month, all years

Jan: 0 stockingsJanFeb: 0 stockingsFebMar: 0 stockingsMarApr: 4 stockings4AprMay: 6 stockings6MayJun: 10 stockings10JunJul: 10 stockings10JulAug: 8 stockings8AugSep: 0 stockingsSepOct: 0 stockingsOctNov: 0 stockingsNovDec: 0 stockingsDec
Stockings of Mayfield Reservoir by month, all years on record. This month is shown in blue.

Year by year

JanFebMarAprMayJunJulAugSepOctNovDec
202623554
202523554

What is stocked

SpeciesStockingsFishFish per stockingTypical size
Rainbow trout43136,9713,185

Stocking history

DateSpeciesFishPoundsHatchery
Aug 25, 2026Rainbow trout2,2202,000Mckernan Hatchery
Aug 19, 2026Rainbow trout2,3202,000Mckernan Hatchery
Aug 11, 2026Rainbow trout2,5202,000Mckernan Hatchery
Aug 5, 2026Rainbow trout1,5341,311Mckernan Hatchery
Aug 5, 2026Rainbow trout971689Mckernan Hatchery
Jul 29, 2026Rainbow trout2,6602,000Mckernan Hatchery
Jul 21, 2026Rainbow trout2,8002,000Mckernan Hatchery
Jul 14, 2026Rainbow trout2,5002,000Mckernan Hatchery
Jul 9, 2026Rainbow trout2,5001,000Mossyrock Hatchery
Jul 8, 2026Rainbow trout3,1202,000Mckernan Hatchery
Jun 30, 2026Rainbow trout3,3202,000Mckernan Hatchery
Jun 23, 2026Rainbow trout2,9802,000Mckernan Hatchery
Jun 16, 2026Rainbow trout3,5602,000George Adams Hatchery
Jun 10, 2026Rainbow trout1,7641,008Mckernan Hatchery
Jun 10, 2026Rainbow trout1,900995Mckernan Hatchery
Jun 3, 2026Rainbow trout1,860989Mckernan Hatchery
Jun 3, 2026Rainbow trout1,8721,012Mckernan Hatchery
May 28, 2026Rainbow trout4,8601,800Mossyrock Hatchery
May 28, 2026Rainbow trout5,9402,200Mossyrock Hatchery
May 21, 2026Rainbow trout5,4002,000Mossyrock Hatchery
Show 23 older stockings
DateSpeciesFishPoundsHatchery
May 5, 2026Rainbow trout4,8002,000Mossyrock Hatchery
Apr 9, 2026Rainbow trout5,2002,000Mossyrock Hatchery
Apr 2, 2026Rainbow trout5,4002,000Mossyrock Hatchery
Aug 26, 2025Rainbow trout2,5602,000Mckernan Hatchery
Aug 20, 2025Rainbow trout2,6652,019Mckernan Hatchery
Aug 11, 2025Rainbow trout2,5262,005Mckernan Hatchery
Aug 5, 2025Rainbow trout2,7672,005Mckernan Hatchery
Jul 29, 2025Rainbow trout2,6602,000Mckernan Hatchery
Jul 23, 2025Rainbow trout2,8602,000Mckernan Hatchery
Jul 16, 2025Rainbow trout3,1602,000Mckernan Hatchery
Jul 8, 2025Rainbow trout3,1202,000Mckernan Hatchery
Jul 2, 2025Rainbow trout3,4602,000Mckernan Hatchery
Jun 25, 2025Rainbow trout3,5522,007Mckernan Hatchery
Jun 18, 2025Rainbow trout1,7001,000Mckernan Hatchery
Jun 17, 2025Rainbow trout1,7001,000Mckernan Hatchery
Jun 11, 2025Rainbow trout3,9152,008Mckernan Hatchery
Jun 4, 2025Rainbow trout4,1052,002Mckernan Hatchery
May 29, 2025Rainbow trout4,4002,000Mossyrock Hatchery
May 22, 2025Rainbow trout4,4002,000Mossyrock Hatchery
May 1, 2025Rainbow trout4,8002,000Mossyrock Hatchery
Apr 10, 2025Rainbow trout5,4002,000Mossyrock Hatchery
Apr 3, 2025Rainbow trout3,1201,300Mossyrock Hatchery
Apr 3, 2025Rainbow trout2,100700Mossyrock Hatchery

From Washington fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go.

Other stocked waters in Lewis County

All stocked waters in Lewis CountyStocked this week in Washington

Questions about Mayfield Reservoir

When was Mayfield Reservoir last stocked?
The latest reported stocking was Aug 25, 2026 (rainbow trout, 2,220 fish), according to Washington agency reports.
How often is Mayfield Reservoir stocked?
Stocked 19 times in 2026, usually on Tuesdays, about every 7 days. Across all years on record, most stockings come in May to August.
What kind of trout are stocked in Mayfield Reservoir?
Rainbow trout (43 stockings, 136,971 fish).