Reservoir · Southborough, Worcester, Massachusetts
Sudbury Reservoir
Location Snapshot
Sudbury Reservoir is a 1,240-acre impoundment of the Sudbury River in Southborough and Marlborough, averaging about 12 feet deep with deeper water reaching roughly 60 feet. Rainbow trout and largemouth bass are the principal supported targets.
Information Only
StrikeTracks does not currently provide a live condition rating for this destination. Destination and fishery information is still available.
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Fishery Profile
Documented species you may encounter at Sudbury Reservoir.
Species images are AI-generated illustrations for visual reference and may simplify natural variation. Fishery records are based on the cited agency sources. About fish illustrations
Fishery overview
Largemouth bass are common and established in Sudbury Reservoir at Southborough. Rainbow trout are the primary fish there, and they are stocked.
Target species

Rainbow Trout
Oncorhynchus mykiss
- Expectation
- Primary
- Population
- Stocked
- Native status
- introduced
- Confidence
- High confidence
Source: MassWildlife

Largemouth Bass
Micropterus nigricans
- Expectation
- Common
- Population
- Established
- Native status
- unknown
- Confidence
- High confidence
Source: MassWildlife
Fishery characteristics
- Composition
- Mixed wild and stocked
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Boat fishing
- Shore fishing
- Spinning
Stocking information
Rainbow trout are stocked in Sudbury Reservoir.
- Stocked
Rainbow Trout
Stocked · MassWildlife
Official sources
Hatch Match
General fly suggestions
- Midge larvaGeneral stillwater midge-style family — not a live Chironomidae Hatch claim.
- Woolly-bugger-style streamerGeneral stillwater streamer family. Not a baitfish or kokanee Hatch event.
- Ant or beetleGeneral shoreline terrestrial family — not a local Hatch calendar.
These are general fishing suggestions, not a report of insects currently hatching at this destination.
Location and Access
Cataloged lake location
Southborough, Worcester, Massachusetts
The map marker represents the cataloged waterbody or monitoring location and may not indicate legal parking or public access. Confirm access through the official information before visiting.
Lake Details
Town
Southborough
County
Worcester
Management Category
Reservoir
Regulation Scope
Sudbury Reservoir.
Regulation Summary
DCR Wachusett Reservoir and Sudbury Reservoir Fishing Guide: Sudbury Reservoir shoreline-only fishing season first Saturday in April through November 30. Confirm current DCR watershed rules.
Target Species
Rainbow Trout, Largemouth Bass
Public Access
Public
Boat Launch
Not available
