Fishing in
Middlesex County
Middlesex County, Massachusetts has 400 named fishable waters, 27 of them with stocking records on the books.
On the map
314 waters
Waters in Middlesex County
- Squannacook Riverstream9× stocked
- Lake Cochituatereservoir6× stocked
- Baddacook Pondlake4× stocked
- Assabet Riverstream4× stocked
- Hopkinton Reservoirreservoir4× stocked
- Sudbury Riverstream4× stocked
- Ashland Reservoirreservoir3× stocked
- Long Sought-for Pondlake3× stocked
- Knops Pondlake3× stocked
- Puffer Pondlake3× stocked
- Falulah Brookstream3× stocked
- Nissitissit Riverstream3× stocked
- Dug Pondlake2× stocked
- Hopping Brookstream2× stocked
- Locke Brookstream2× stocked
- Spot Pondlake1× stocked
- Lexington Reservoirreservoir1× stocked
- Catacoonamug Brookstream1× stocked
- Cow Pond Brookstream1× stocked
- Fort Pond Brookstream1× stocked
- Mulpus Brookstream1× stocked
- Nashoba Brookstream1× stocked
- River Meadow Brookstream1× stocked
- Strong Water Brookstream1× stocked
- Unkety Brookstream1× stocked
- Upper Wrights Pondreservoir1× stocked
- Whitehall Reservoirswamp1× stocked
- Cambridge Reservoirreservoir471 ac
- Nashua River Reservoirreservoir296 ac
- Nagog Pondreservoir283 ac
370 more on the map above.
What you'll catch here
- Brown Trout21 waters
- Rainbow Trout16 waters
- Brook Trout11 waters
- Tiger Trout1 waters
Latest stockings
- Ashland ReservoirRainbow TroutMay 27, 2026
- Baddacook PondBrook TroutMay 19, 2026
- Lake CochituateBrook TroutMay 18, 2026
- Lake CochituateBrown TroutMay 18, 2026
- Knops PondBrown TroutMay 15, 2026
- Knops PondBrook TroutMay 15, 2026
- Ashland ReservoirBrown TroutMay 14, 2026
- Sudbury RiverBrown TroutMay 14, 2026
- Sudbury RiverBrown TroutMay 14, 2026
- Strong Water BrookBrown TroutMay 14, 2026
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Middlesex County fishing — FAQ
Where can I fish in Middlesex County, Massachusetts?+
Middlesex County has 400 named fishable waters, 27 with stocking records. The map above shows every one.
What fish are stocked in Middlesex County?+
Waters in Middlesex County hold brown trout, rainbow trout, brook trout and tiger trout. See each water's page for its full stocking history.
Do I need a license to fish in Middlesex County?+
Yes — Massachusetts requires a fishing license statewide. Buy one from the state agency before you go.