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Nassau County

Upper Twin Pond

NYSDEC reported 2,585 trout stocked in Upper Twin Pond (Nassau County) in 2025, the latest year in its stocking lists. The most recent month listed is November 2025. DEC lists stocking by month, not by day.

NYSDEC data pulled .

A lake with rocks and shore
Photo: petrabernecker, Pixabay License, Pixabay

Upper Twin Pond in numbers

trout stocked in 2025
2,585
yearly average, 2020–2024
2,512
years stocked since 2020
6
Stocking log

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.

Last stocked, November 2025595595 brown trout
Spring 2026 plan
When (DEC wording)SpeciesFishSize
April 2026Rainbow trout620 fish6208 inches
April 2026Brown trout120 fish12012–15 inches
March 2026Brown trout460 fish46012–15 inches
March 2026Rainbow trout160 fish1608 inches
2025 · 2,585 fish
MonthSpeciesFishBatchesAverage length
NovemberBrown trout595 fish · Average length: 11.1 in595111.1 in
OctoberBrown trout680 fish · Average length: 11.1 in680111.1 in
AprilRainbow trout630 fish · Average length: 9.2 in63019.2 in
AprilBrown trout100 fish · Average length: 11.6 in100111.6 in
MarchBrown trout420 fish · Average length: 14.1 in420114.1 in
MarchRainbow trout160 fish · Average length: 8.9 in16018.9 in
2024 · 2,590 fish
MonthSpeciesFishBatchesAverage length
OctoberBrown trout600 fish · Average length: 10.3 in600110.3 in
SeptemberBrown trout680 fish · Average length: 9.6 in68019.6 in
AprilRainbow trout630 fish · Average length: 9.1 in63019.1 in
AprilBrown trout100 fish · Average length: 13.8 in100113.8 in
MarchBrown trout420 fish · Average length: 11.2 in420111.2 in
MarchRainbow trout160 fish · Average length: 9.1 in16019.1 in
2023 · 2,530 fish
MonthSpeciesFishBatchesAverage length
NovemberBrown trout600 fish · Average length: 9.7 in60019.7 in
OctoberBrown trout680 fish · Average length: 9.7 in68019.7 in
AprilRainbow trout600 fish · Average length: 9.4 in60019.4 in
AprilBrown trout100 fish · Average length: 10.8 in100110.8 in
MarchBrown trout400 fish · Average length: 13.9 in400113.9 in
MarchRainbow trout150 fish · Average length: 9.1 in15019.1 in
Every year since 2020
YearFish
20252,585 fish2,585
20242,590 fish2,590
20232,530 fish2,530
20222,530 fish2,530
20212,350 fish2,350
20202,560 fish2,560
2020 – 2025

Trout stocked each year

DEC’s lists end with the latest year it has published. The tallest year is yellow.

  1. 2.6k2020: 2,560 fish
  2. 2.4k2021: 2,350 fish
  3. 2.5k2022: 2,530 fish
  4. 2.5k2023: 2,530 fish
  5. 2.6k2024: 2,590 fish
  6. 2.6k2025: 2,585 fish

What is stocked here

All records since 2020
SpeciesFishShare
Brown trout10,85572%
Rainbow trout4,29028%

No single map point is given for this water in the USGS names database, so no map is shown.

Also in Nassau County: Massapequa Reservoir, Oyster Bay Mill Pond.

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.