Stocking Report
Rainbow Trout stocking in Washington
27,628 recorded stockings, 734 waters, from Washington Department of Fish and Wildlife records. Every water links to its own page.
Latest recorded stocking: Sep 30, 2026
When rainbow trout goes in
67% of recorded stockings happen from March through May.
- 2%Jan
- 3%Feb
- 14%Mar
- 33%Apr
- 21%May
- 9%Jun
- 3%Jul
- 3%Aug
- 3%Sep
- 6%Oct
- 3%Nov
- 1%Dec
Share of all recorded rainbow trout stockings in Washington, by calendar month. Stocking does not guarantee fish are present. Check current regulations and access before you go.
States run two very different stocking calendars. We looked at all 114,145 records to work out why.
Where rainbow trout gets stocked in Washington
| Water | County | Stockings | Fish | Last recorded |
|---|---|---|---|---|
| Billy Clapp Lake | Grant | 75 | 2,389,896 | Apr 21, 2026 |
| Haven Lake | Mason | 75 | 302,587 | Apr 14, 2026 |
| Wenas Lake | Yakima | 74 | 259,844 | May 4, 2026 |
| Bosworth Lake | Snohomish | 74 | 280,395 | Apr 16, 2026 |
| Teal Lake | Jefferson | 73 | 22,401 | Sep 29, 2026 |
| Sandy Shore Lake | Jefferson | 73 | 94,121 | Oct 10, 2023 |
| Loon Lake | Stevens | 72 | 362,757 | Mar 12, 2026 |
| Bonaparte Lake | Okanogan | 71 | 132,713 | Sep 22, 2026 |
| Fish Lake | Okanogan | 71 | 726,632 | Jun 18, 2026 |
| Potholes Reservoir | Grant | 71 | 3,244,436 | May 29, 2026 |
| Sacheen Lake | Pend Oreille | 71 | 633,336 | May 12, 2026 |
| Tarboo Lake | Jefferson | 70 | 62,990 | Apr 22, 2026 |
| Tee Lake | Mason | 70 | 100,522 | Mar 16, 2026 |
| Park Lake | Grant | 70 | 3,234,805 | Oct 3, 2025 |
| Wye Lake | Kitsap | 69 | 73,863 | Sep 28, 2026 |
| Lake Merwin | Clark | 69 | 62,958 | Jul 13, 2026 |
| Lake Alice | King | 69 | 137,067 | May 6, 2026 |
| Pine Lake | King | 69 | 557,098 | Apr 13, 2026 |
| Round Lake | Okanogan | 68 | 117,571 | Jun 29, 2026 |
| Horseshoe Lake | Kitsap | 68 | 76,847 | Apr 14, 2026 |
| Moses Lake | Grant | 67 | 971,384 | Jun 23, 2026 |
| Grandy Lake | Skagit | 67 | 146,701 | May 7, 2026 |
| Mission Lake | Kitsap | 67 | 166,636 | Apr 20, 2026 |
| Silver Lake | Pierce | 66 | 488,987 | Apr 20, 2026 |
See everything Washington stocks in the full Washington stocking report, or browse every mapped water in the Washington fishing spot finder.
Source: Washington Department of Fish and Wildlife, from its fish plants dataset on data.wa.gov.
