Arrowrock Reservoir Fishing and Stocking
Boise, Elmore County, Idaho. The Idaho Department of Fish and Game lists 4 stockings here in the latest year of its data (Kokanee and Rainbow Trout), the most recent on Sep 30, 2026. Stocked in March, May and September in two or more years.
2026 Stocking
| Date | Species | Fish | Size |
|---|---|---|---|
| Sep 30, 2026 | Rainbow Trout | 1,393 | Fingerling (3-6 inches) |
| Sep 22, 2026 | Rainbow Trout | 9,000 | Catchable (12-14 inches) |
| May 21, 2026 | Kokanee | 201,217 | Fingerling (3-6 inches) |
| Mar 16, 2026 | Rainbow Trout | 9,086 | Catchable (6+ inches) |
2025 Stocking
| Date | Species | Fish | Size |
|---|---|---|---|
| Sep 18, 2025 | Rainbow Trout | 9,000 | Catchable (6+ inches) |
| May 30, 2025 | Rainbow Trout | 50,180 | Fry (0-3 inches) |
| May 30, 2025 | Rainbow Trout | 45,518 | Fingerling (3-6 inches) |
| May 15, 2025 | Kokanee | 303,030 | Fry (0-3 inches) |
| Apr 1, 2025 | Rainbow Trout | 9,010 | Catchable (12-14 inches) |
| Mar 20, 2025 | Rainbow Trout | 12,546 | Catchable (6+ inches) |
2024 Stocking
| Date | Species | Fish | Size |
|---|---|---|---|
| Oct 21, 2024 | Rainbow Trout | 9,030 | Catchable (12-14 inches) |
| May 30, 2024 | Kokanee | 455,423 | Fry (0-3 inches) |
| Mar 28, 2024 | Rainbow Trout | 747 | Catchable (12-14 inches) |
| Mar 27, 2024 | Rainbow Trout | 8,255 | Catchable (12-14 inches) |
Other Stocked Waters in Boise, Elmore County
About This Data
Every row comes from the stocking information published by the Idaho Department of Fish and Game, checked Oct 20, 2026. The agency lists this water as “Arrowrock Reservoir”. Species and sizes are given as the agency names them; a dash means the agency does not say.
More for Idaho Anglers
Stocking dates and places can change without notice; check with the agency before a trip. ReelTourney is not affiliated with the Idaho Department of Fish and Game.