Swan River
NYSDEC reported 170 trout stocked in Swan River (Suffolk County) in 2025, the latest year in its stocking lists. The most recent month listed is October 2025. DEC lists stocking by month, not by day.
NYSDEC data pulled .
Swan River in numbers
- trout stocked in 2025
- 170
- yearly average, 2020–2024
- 182
- 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. DEC lists each batch with its average length; where a month has several batches the range is shown.
| Month | Species | Fish | Batches | Average length |
|---|---|---|---|---|
| October | Brown trout170 fish · Average length: 11 in | 170 | 1 | 11 in |
| Month | Species | Fish | Batches | Average length |
|---|---|---|---|---|
| September | Brown trout170 fish · Average length: 9.6 in | 170 | 1 | 9.6 in |
| Month | Species | Fish | Batches | Average length |
|---|---|---|---|---|
| September | Brown trout170 fish · Average length: 9.2 in | 170 | 1 | 9.2 in |
| Year | Fish |
|---|---|
| 2025170 fish | 170 |
| 2024170 fish | 170 |
| 2023170 fish | 170 |
| 2022170 fish | 170 |
| 2021200 fish | 200 |
| 2020200 fish | 200 |
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 |
|---|---|---|
| Brown trout | 1,080 | 100% |
No single map point is given for this water in the USGS names database, so no map is shown.
Also in Suffolk County: Carmans River, Upper Lake, Belmont Lake, Hards Lake, Nissequogue River, West Lake, Argyle Lake, Carlls River.
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.