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Okanogan County

Patterson Lake

WDFW logged 3 trout stocking dates at Patterson Lake in 2026 so far, 29,150 fish in all. The latest was on Sep 18, 2026. WDFW lists it as “Patterson Lk (Okan)”.

WDFW data pulled . Latest record in the WDFW data for any water: Nov 4, 2026.

A lake with forest and mountains
Photo: 12019, Pixabay License, Pixabay

Patterson Lake in numbers

fish stocked in 2026, through Nov 6
29,150
by the same date in 2025
30,073
in all of 2025
30,073
Stocking log

Every stocking record

Every trout and kokanee release WDFW lists for this water in the last two years, newest first, then yearly totals since 2020. Counts include fry and fingerlings as well as catchable trout: WDFW calls catchable fish “legals”. Fish per pound is WDFW’s figure for each release; fewer fish per pound means bigger fish.

Last stocked, Sep 18, 20262,000Rainbow trout, legals
2026 · 29,150 fish on 3 dates
DateSpeciesFishLife stageFish per lb
Sep 18Rainbow trout2,000 fish · Legals2,000Legals2.5
Sep 16Brown trout2,150 fish · Legals2,150Legals2.5
Jun 2Kokanee16,229 fish · Fry16,229Fry296
Jun 2Kokanee8,771 fish · Fry8,771Fry296
2025 · 30,073 fish on 3 dates
DateSpeciesFishLife stageFish per lb
Sep 26Rainbow trout2,500 fish · Legals2,500Legals2.8
Sep 9Brown trout2,500 fish · Legals2,500Legals2.6
May 20Kokanee20,581 fish · Fry20,581Fry210
May 20Kokanee4,492 fish · Fry4,492Fry210
Every year since 2020
YearStocking datesFish
2026329,150
2025330,073
2024330,000
2023425,000
2022318,974
2021416,991
2020318,460
2020 – 2026

Trout stocked each year

2026 is outlined because the year is not over. The tallest full year is yellow. Counts include fry and fingerlings.

  1. 18k2020: 18,460 fish
  2. 17k2021: 16,991 fish
  3. 19k2022: 18,974 fish
  4. 25k2023: 25,000 fish
  5. 30k2024: 30,000 fish
  6. 30k2025: 30,073 fish
  7. 29k2026: 29,150 fish

What is stocked here

All records since 2020
SpeciesFishShare
Kokanee129,20777%
Rainbow trout18,39111%
Tiger trout13,9008%
Brown trout7,1504%

Where it is

Washington trout stockingAll Okanogan County watersRecently stocked in Washington

No single map point is given for this water in the USGS names database, so no map is shown.

Also in Okanogan County: Lake Roosevelt (Kettle Falls), Spectacle Lake, Palmer Lake, Conconully Lake, Bonaparte Lake, Conconully Reservoir, Alta Lake, Beaver Lake (okan) T39.

Source: WDFW Fish Plants dataset, data.wa.gov, Washington Department of Fish and Wildlife. Pulled . Check the agency and the current fishing rules before you go.