Lake · Kittitas, Washington
Cooper Lake
At a glance
- Area
- 49 ha (121 acres)
Who lives here
- Rainbow trout Oncorhynchus mykissStocked · 2026 · Fish stocking: Washington Department of Fish and Wildlife, Fish Plants (data.wa.gov)
Not listed doesn't mean no fish.
Stocking
| Year | Species | Stage | Number |
|---|---|---|---|
| May 26, 2026 | Rainbow Trout | Legals | 3,000 |
| May 28, 2025 | Rainbow Trout | Legals | 3,000 |
| May 28, 2024 | Rainbow Trout | Legals | 3,000 |
| May 30, 2023 | Rainbow Trout | Legals | 3,000 |
| Jun 8, 2022 | Rainbow Trout | Legals | 3,000 |
| Jun 10, 2020 | Rainbow Trout | Legals | 2,544 |
| May 20, 2020 | Rainbow Trout | Legals | 2,520 |
| Jun 5, 2019 | Rainbow Trout | Legals | 2,496 |
| May 20, 2019 | Rainbow Trout | Legals | 2,520 |
| Jun 11, 2018 | Rainbow Trout | Legals | 2,750 |
| May 21, 2018 | Rainbow Trout | Legals | 2,500 |
| Jun 20, 2017 | Rainbow Trout | Legals | 283 |
| Jun 6, 2017 | Rainbow Trout | Legals | 4,020 |
| May 30, 2017 | Rainbow Trout | Legals | 3,500 |
| Jun 2, 2016 | Rainbow Trout | Legals | 3,000 |
| Jun 1, 2016 | Rainbow Trout | Legals | 417 |
| May 18, 2016 | Rainbow Trout | Legals | 3,350 |
As the agency publishes it. Newest first: 17 of 17.
Getting on the water
No public access site is listed for this water yet.
Listed by public agencies. A listed site doesn't make the water or its shore open to fishing: when in doubt, it's unknown. Check signs and local rules.
The rules
Summary, not the law. Check the official regulations before you fish.
HuntGrid has no rules for this water yet.
Official regulations: Washington Department of Fish and Wildlife
What's biting
This water is too small for community summaries: on a small water a summary could point to someone's spot.
About this page
Sources and licences:
- U.S. Geological Survey, National Hydrography Dataset Plus High Resolution (NHDPlus HR); U.S. Census Bureau, TIGER/Line® Shapefiles 2025: counties and states · Public domain (U.S. Government work, 17 U.S.C. §105)
- Fish stocking: Washington Department of Fish and Wildlife, Fish Plants (data.wa.gov) · No licence stated (US government data; owner approved 2026-10-17): data.wa.gov dataset 6fex-3r7d (WDFW-Fish Plants, read 2026-10-19) states no licence, and the portal's terms links are dead; wdfw.wa.gov's footer "All rights reserved" is the website's own (owner ruling 2026-10-17). Credit the agency; remove if asked.
The outline is drawn from the official water data credited above, without a basemap. These pages show no angler's catches, spots or tracks.