Middlesex County · reservoir
Hopkinton Reservoir
Stocked 4× on record · MassWildlife
Hopkinton Reservoir is a reservoir in Middlesex County, Massachusetts, stocked with Brook Trout, Brown Trout, Rainbow Trout and Tiger Trout — most recently on May 11, 2026. FishableWaters aggregates every stocking record for this water from MassWildlife; the latest schedule and today's bite windows are above.
Best days this week
Days near a new or full moon tend to fish best.
Today's bite windows
Conditions, next 3 days
Today
Overcast
81°
61°
6 mph
22%
Sat
Overcast
85°
66°
8 mph
21%
Sun
Overcast
87°
64°
12 mph
11%
↗ pressure risingPost-front rising pressure can slow things down for a day.
Stocking ledger
| — 2026 — | ||||
| May 11 | Brown Trout | — | ||
| May 11 | Brook Trout | — | ||
| Apr 28 | Tiger Trout | — | ||
| Mar 23 | Rainbow Trout | — | ||
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
All Massachusetts waters with brook trout → · All Massachusetts waters with brown trout →
Nearby waters
- Sudbury River Reservoir0.8 mi
- Hopkinton State Park Swimming Pool Reservoir0.7 mi
- Indian Brook1.4 mi
- Duck Pond1.6 mi
- Hayes Pond2.0 mi
- Icehouse Pond2.6 mi
- Sudbury River Reservoir2.1 mi
- Crystal Pond2.5 mi
Seasons, limits, and rules are the state's call — check the official MA regulations and buy your license before you go. We link the source; we never restate the rules.
Hopkinton Reservoir fishing — FAQ
What fish are stocked in Hopkinton Reservoir?+
Hopkinton Reservoir is stocked with Brook Trout, Brown Trout, Rainbow Trout and Tiger Trout in Middlesex County, Massachusetts, most recently on May 11, 2026 by MassWildlife. The full stocking ledger is on this page.
When does Hopkinton Reservoir get stocked?+
Going by 4 records since 2026, stocking at Hopkinton Reservoir peaks in May. Check this page for the season's scheduled and most recent stockings.
Do I need a license to fish Hopkinton Reservoir?+
Yes — Massachusetts requires a fishing license. Buy one from the state and check current seasons and limits before you go; both are linked on this page.
Where is Hopkinton Reservoir?+
Hopkinton Reservoir is a reservoir in Middlesex County, Massachusetts. Driving directions and an interactive topo map are on this page.
Data: MassWildlife · updated May 11, 2026 · checked daily · we publish what agencies publish, nothing else.