Reservoir · Southborough, Worcester, Massachusetts

Sudbury Reservoir

Browse Lakes

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.

Weather Near Lake

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Fishery Profile

Documented species you may encounter at Sudbury Reservoir.

High confidenceLast verified: Aug 13, 2026

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.

  • Rainbow Trout

    Stocked · MassWildlife

    Stocked

Hatch Match

No destination-specific hatch data is currently available.

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

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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