Grass Lake fish stocking
Theresa, Jefferson County, New York
Grass Lake in Theresa, Jefferson County, New York was last stocked in May 2025 with 960,000 walleye. Across the 4 years shown here, NYSDEC released 3,841,600 fish in 5 separate stockings. Stockings here are most common in April, May, and August.
When Grass Lake gets fish
Stocking history
New York reports the month of each stocking, not the exact day.
2025 · 960,000 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Walleye | 960,000 | 0.3″ |
2024 · 960,000 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Walleye | 960,000 | 0.3″ |
2023 · 961,600 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Tiger Muskellunge | 1,600 | 8.7″ | |
| Walleye | 960,000 | 0.3″ |
2022 · 960,000 fish
| Date | Species | Fish | Size |
|---|---|---|---|
| Walleye | 960,000 | 0.5″ |
Frequently asked questions
When was Grass Lake last stocked?
NYSDEC records show Grass Lake was last stocked in May 2025 (about 17 months ago), with 960,000 walleye.
What fish are stocked in Grass Lake?
Grass Lake has been stocked with tiger muskellunge and walleye in the years shown here (2022–2025).
When does Grass Lake usually get stocked?
Most fish have been stocked in April, May, and August. Exact dates change from year to year, so check back or see NYSDEC's official stocking page.
Do I need a license to fish Grass Lake?
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 Grass Lake.
Other stocked waters in Jefferson County
Lake of the Woods
Millsite Lake
Sixberry Lake
Hyde Lake
Black Creek
Black Creek West Branch
All 25 stocked waters in Jefferson 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.