StockingRecord
Menu
St Lawrence County

Grass River South Branch

NYSDEC reported 2,480 trout stocked in Grass River South Branch (St Lawrence County) in 2025, the latest year in its stocking lists. The most recent month listed is May 2025. DEC lists stocking by month, not by day.

NYSDEC data pulled .

A river with forest and rocks
Photo: Themanicpsycho, Pixabay License, Pixabay

Grass River South Branch in numbers

trout stocked in 2025
2,480
yearly average, 2020–2024
2,538
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, May 20252,4802,480 brown trout
Spring 2026 plan
When (DEC wording)SpeciesFishSize
May - second week 2026Brown trout2,260 fish2,2609– 10 inches
May - second week 2026Brown trout270 fish27012–15 inches
2025 · 2,480 fish
MonthSpeciesFishBatchesAverage length
MayBrown trout2,480 fish · Average length: 8.3–13.3 in2,48048.3–13.3 in
2024 · 2,380 fish
MonthSpeciesFishBatchesAverage length
MayBrown trout2,380 fish · Average length: 9.3–13.2 in2,38049.3–13.2 in
2023 · 2,360 fish
MonthSpeciesFishBatchesAverage length
MayBrown trout2,360 fish · Average length: 9.4–13.4 in2,36049.4–13.4 in
Every year since 2020
YearFish
20252,480 fish2,480
20242,380 fish2,380
20232,360 fish2,360
20222,820 fish2,820
20212,850 fish2,850
20202,280 fish2,280
2020 – 2025

Trout stocked each year

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

  1. 2.3k2020: 2,280 fish
  2. 2.9k2021: 2,850 fish
  3. 2.8k2022: 2,820 fish
  4. 2.4k2023: 2,360 fish
  5. 2.4k2024: 2,380 fish
  6. 2.5k2025: 2,480 fish

What is stocked here

All records since 2020
SpeciesFishShare
Brown trout15,170100%

Where it is

New York trout stockingAll St Lawrence County waters

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, Star Lake, Oswegatchie River, Grass River, Hopkinton Brook, Little 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.