Lake Ontario fish stocking
Mexico, Oswego County, New York
Lake Ontario in Mexico, Oswego County, New York was last stocked in June 2025 with 29,000 brown trout. Across the 4 years shown here, NYSDEC released 521,964 fish in 15 separate stockings. Stockings here are most common in May and June.
2026 stocking plan
From NYSDEC's published season plan. Plans can change because of weather and hatchery conditions.
| When | Species | Fish | Size |
|---|---|---|---|
| — 2026 | Brown Trout | 48,650 | 8 inches |
| — 2026 | Brown Trout | 37,100 | 8 inches |
When Lake Ontario gets fish
Stocking history
New York reports the month of each stocking, not the exact day.
2025 · 117,990 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Brown Trout | 16,870 | 6.1″ | |
| Brown Trout | 12,130 | 8.2″ | |
| Brown Trout | 50,490 | 7.6″ | |
| Brown Trout | 38,500 | 7.9″ |
2024 · 161,041 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Brown Trout | 49,110 | 8″ | |
| Brown Trout | 3,981 | 7.3″ | |
| Brown Trout | 37,450 | 7.8″ | |
| Lake Trout | 30,800 | 6.8″ | |
| Lake Trout | 39,700 | 6.7″ |
2023 · 162,017 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Brown Trout | 35,000 | 7.8″ | |
| Brown Trout | 45,917 | 8″ | |
| Lake Trout | 40,736 | 6.4″ | |
| Lake Trout | 40,364 | 6.1″ |
2022 · 80,916 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Brown Trout | 35,000 | 8″ | |
| Brown Trout | 45,916 | 7.5″ |
Frequently asked questions
When was Lake Ontario last stocked?
NYSDEC records show Lake Ontario was last stocked in June 2025 (about 16 months ago), with 29,000 brown trout.
What fish are stocked in Lake Ontario?
Lake Ontario has been stocked with brown trout and lake trout in the years shown here (2022–2025).
When does Lake Ontario usually get stocked?
Most fish have been stocked in May and June. Exact dates change from year to year, so check back or see NYSDEC's official stocking page.
Do I need a license to fish Lake Ontario?
Yes, anglers generally need a valid New York fishing license. Check the current New York fishing regulations for seasons, limits and any special rules for Lake Ontario.
Other stocked waters in Oswego County
Onieda Lake
Salmon River
Salmon River Reservoir
Lighthouse Hill Reservoir
North Branch Salmon River
Oneida Lake
All 16 stocked waters in Oswego County →
Source: Fish Stocking Lists (Actual) (data.ny.gov), Current Season Spring Trout Stocking (data.ny.gov). Stocked Lakes is not affiliated with New York State Department of Environmental Conservation. Spot a problem? Let us know.