Sylvia Lake
NYSDEC reported 4,050 trout stocked in Sylvia Lake (St Lawrence County) in 2025, the latest year in its stocking lists. The most recent month listed is June 2025. DEC lists stocking by month, not by day.
NYSDEC data pulled .
Sylvia Lake in numbers
- trout stocked in 2025
- 4,050
- yearly average, 2020–2024
- 3,402
- years stocked since 2020
- 6
Every stocking record
DEC stocking lists for the last three years on record, by month and species, newest first, then yearly totals, and the spring plan DEC published for this water. DEC lists each batch with its average length; where a month has several batches the range is shown.
| When (DEC wording) | Species | Fish | Size |
|---|---|---|---|
| May 2026 | Rainbow trout3,120 fish | 3,120 | 8 inches |
| Month | Species | Fish | Batches | Average length |
|---|---|---|---|---|
| June | Rainbow trout900 fish · Average length: 9.6 in | 900 | 1 | 9.6 in |
| May | Rainbow trout3,150 fish · Average length: 9.6 in | 3,150 | 1 | 9.6 in |
| Month | Species | Fish | Batches | Average length |
|---|---|---|---|---|
| May | Rainbow trout3,150 fish · Average length: 9.6 in | 3,150 | 1 | 9.6 in |
| Month | Species | Fish | Batches | Average length |
|---|---|---|---|---|
| November | Rainbow trout3,000 fish · Average length: 6.8 in | 3,000 | 1 | 6.8 in |
| May | Rainbow trout3,000 fish · Average length: 9.4 in | 3,000 | 1 | 9.4 in |
| Year | Fish |
|---|---|
| 20254,050 fish | 4,050 |
| 20243,150 fish | 3,150 |
| 20236,000 fish | 6,000 |
| 20223,000 fish | 3,000 |
| 20212,610 fish | 2,610 |
| 20202,250 fish | 2,250 |
Trout stocked each year
DEC’s lists end with the latest year it has published. The tallest year is yellow.
What is stocked here
| Species | Fish | Share |
|---|---|---|
| Rainbow trout | 21,060 | 100% |
No single map point is given for this water in the USGS names database, so no map is shown.
Also in St Lawrence County: Plumb Brook, Ozonia Lake, St. Regis River, Grass River South Branch, Star Lake, Oswegatchie River, Grass River, Hopkinton Brook.
Source: DEC fish stocking lists (actual), data.ny.gov and the DEC spring trout stocking plan, data.ny.gov, New York State Department of Environmental Conservation. Pulled . Check the agency and the current fishing rules before you go.