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About this water
Cooper Lake is a 121 acre lake in Kittitas County, Washington. State records show it stocked 36 times between 2000 and 2026. The most-stocked species are rainbow trout and cutthroat trout. 77,207 rainbow trout have gone in across 31 releases.
Stocking history
36 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| May 26, 2026 | Rainbow · Goldendale | 3,000 | — | Naches Hatchery |
| May 28, 2025 | Rainbow · Goldendale | 3,000 | — | Naches Hatchery |
| May 28, 2024 | Rainbow · Goldendale | 3,000 | — | Naches Hatchery |
| May 30, 2023 | Rainbow · Goldendale | 3,000 | — | Naches Hatchery |
| Jun 8, 2022 | Rainbow · Goldendale | 3,000 | — | Naches Hatchery |
| Jun 10, 2020 | Rainbow · Goldendale | 2,544 | — | Naches Hatchery |
| May 20, 2020 | Rainbow · Goldendale | 2,520 | — | Naches Hatchery |
| Jun 5, 2019 | Rainbow · Goldendale | 2,496 | — | Naches Hatchery |
| May 20, 2019 | Rainbow · Goldendale | 2,520 | — | Naches Hatchery |
| Jun 11, 2018 | Rainbow · Goldendale | 2,750 | — | Naches Hatchery |
| May 21, 2018 | Rainbow · Goldendale | 2,500 | — | Naches Hatchery |
| Jun 20, 2017 | Rainbow · Trout Lodge, WA | 283 | — | Trout Lodge Commercial |
Showing the 12 most recent of 36. Stocking records for Cooper Lake published by Washington Department of Fish and Wildlife. Stocking does not guarantee fish are present. Check current regulations and access before you go. See the full Washington stocking report.
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