Mason Lake fish stocking
Mason County, Washington
Mason Lake in Mason County, Washington was last stocked on August 3, 2026 with 24,025 rainbow trout fry from Eells Springs. Across the 5 years shown here, WDFW released 1,190,108 fish in 58 separate stockings. Stockings here are most common in May, August, and October.
When Mason Lake gets fish
Stocking history
Washington reports the exact release date. Sizes for Washington are estimated from the reported fish-per-pound.
2026 · 222,677 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 16,295 | 3.2″ | Fry | |
| Rainbow Trout | 7,730 | 3.1″ | Fry | |
| Rainbow Trout | 6,445 | 3.1″ | Fry | |
| Rainbow Trout | 8,735 | 3″ | Fry | |
| Rainbow Trout | 15,615 | 3.1″ | Fry | |
| Rainbow Trout | 20,095 | 3.4″ | Fry | |
| Rainbow Trout | 18,675 | 3.3″ | Fry | |
| Rainbow Trout | 8,120 | 3.1″ | Fry | |
| Rainbow Trout | 31,677 | — | Fry | |
| Rainbow Trout | 56,100 | — | Fry | |
| Rainbow Trout | 33,190 | — | Fry |
2025 · 241,845 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 2,825 | 5.2″ | Fry | |
| Rainbow Trout | 200 | 3.9″ | Fry | |
| Rainbow Trout | 9,500 | 5″ | Fry | |
| Rainbow Trout | 4,616 | 5″ | Fry | |
| Rainbow Trout | 1,147 | 5.5″ | Fry | |
| Rainbow Trout | 6,705 | 5.3″ | Fry | |
| Rainbow Trout | 39,735 | 3.7″ | Fry | |
| Rainbow Trout | 47,120 | 3.7″ | Fry | |
| Rainbow Trout | 43,540 | 3.7″ | Fry | |
| Rainbow Trout | 3,710 | 2.5″ | Fry | |
| Rainbow Trout | 29,460 | — | Fry | |
| Kokanee | 49,610 | — | Fry | |
| Rainbow Trout | 1,994 | 4.9″ | Fry | |
| Rainbow Trout | 1,683 | 4.9″ | Fry |
2024 · 280,342 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 21,190 | 5.4″ | Fry | |
| Rainbow Trout | 14,865 | 4.8″ | Fry | |
| Rainbow Trout | 16,900 | 5.4″ | Fry | |
| Rainbow Trout | 7,225 | 4.8″ | Fry | |
| Rainbow Trout | 6,560 | 5″ | Fry | |
| Rainbow Trout | 4,240 | 5.2″ | Fry | |
| Rainbow Trout | 11,980 | 4.9″ | Fry | |
| Rainbow Trout | 5,075 | 5.2″ | Fry | |
| Rainbow Trout | 1,270 | 3.1″ | Fry | |
| Rainbow Trout | 109,160 | 4.4″ | Fry | |
| Rainbow Trout | 26,917 | 3.2″ | Fry | |
| Rainbow Trout | 21,688 | 3.2″ | Fry | |
| Rainbow Trout | 150 | 10.5″ | Catchable | |
| Rainbow Trout | 2 | 17.9″ | Catchable | |
| Rainbow Trout | 33,120 | — | Fry |
2023 · 311,588 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 1,925 | 6.2″ | Catchable | |
| Rainbow Trout | 15,285 | 3.8″ | Fry | |
| Rainbow Trout | 9,985 | 5″ | Fry | |
| Cutthroat Trout | 6,200 | 4.6″ | Yearling | |
| Rainbow Trout | 187,435 | 3.7″ | Fry | |
| Rainbow Trout | 2,830 | 2.4″ | Fry | |
| Kokanee | 43,165 | 2.1″ | Fry | |
| Rainbow Trout | 37,100 | — | Fry | |
| Rainbow Trout | 3 | 21.5″ | Catchable | |
| Rainbow Trout | 200 | 9.8″ | Catchable | |
| Cutthroat Trout | 7,460 | — | Fry |
2022 · 133,656 fish
| Date | Species | Fish | Size | Type |
|---|---|---|---|---|
| Rainbow Trout | 5,705 | 6.5″ | Catchable | |
| Rainbow Trout | 8,310 | 5.4″ | Fry | |
| Rainbow Trout | 11,473 | 5.1″ | Fry | |
| Rainbow Trout | 1,690 | 3.4″ | Fry | |
| Rainbow Trout | 28,660 | 3.4″ | Fry | |
| Rainbow Trout | 46,850 | 3.5″ | Fry | |
| Rainbow Trout | 30,968 | — | Fry |
Frequently asked questions
When was Mason Lake last stocked?
WDFW records show Mason Lake was last stocked on August 3, 2026 (about 2 months ago), with 24,025 rainbow trout fry.
What fish are stocked in Mason Lake?
Mason Lake has been stocked with cutthroat trout, kokanee, and rainbow trout in the years shown here (2022–2026).
When does Mason Lake usually get stocked?
Most fish have been stocked in May, August, and October. Exact dates change from year to year, so check back or see WDFW's official stocking page.
Do I need a license to fish Mason Lake?
Yes, anglers generally need a valid Washington fishing license. Check the current Washington fishing regulations for seasons, limits and any special rules for Mason Lake.
Other stocked waters in Mason County
Benson Lake
Isabella Lake
Island Lake
Melbourne Lake
Osborne Lakes
Trails End Lake
All 50 stocked waters in Mason County →
Source: WDFW Fish Plants (data.wa.gov). Stocked Lakes is not affiliated with Washington Department of Fish and Wildlife. Spot a problem? Let us know.