Lake Lillinonah fishing: Largemouth Bass, Smallmouth Bass, Bluegill

Target species: Largemouth Bass, Smallmouth Bass, Bluegill, Rock Bass
Boat: 2 ramps and launches on file for this water.
Start here: Launch at Lake Lillinonah (Pond Brook) Boat Launch.

The lake

Lake Lillinonah covers 1,597 acres in Connecticut, across 3 counties: Western Connecticut, Naugatuck Valley and Northwest Hills. It is a lake: 91.1% of it is 70 feet deep or less; the deepest point measured is at least 80 feet (24.4 m). Our records hold 7 species for this water.

Lake Lillinonah.jpg
AirportExpert · CC0

Depth and bottom

Deepest measured point: at least 80 ft (24.4 m). That is the deepest contour line: the bottom goes deeper. 91.1% of the water is 70 feet or shallower. We hold 174 depth contour lines for this water.

Shepaug Dam 016.JPG
Pedro Xing · CC0
  • 0–5 ft: 8.6% of the water
  • 5–10 ft: 8.4% of the water
  • 10–15 ft: 11.1% of the water
  • 15–20 ft: 10.1% of the water
  • 20–25 ft: 8.1% of the water
  • 25–30 ft: 7.9% of the water
  • 30–35 ft: 7.8% of the water
  • 35–40 ft: 8% of the water
  • 40–45 ft: 5.7% of the water
  • 45–50 ft: 4.7% of the water
  • 50–55 ft: 3.7% of the water
  • 55–60 ft: 3.2% of the water
  • 60–65 ft: 1.9% of the water
  • 65–70 ft: 1.9% of the water
  • 70–75 ft: 2% of the water
  • 75–80 ft: 6.9% of the water

4 target fish, led by Largemouth Bass

  • Largemouth Bass — Feeding water: 65–85°F.
  • Smallmouth Bass — Feeding water: 60–75°F.
  • Bluegill — Feeding water: 70–85°F.
  • Rock Bass — Feeding water: 65–75°F.

Also recorded here: Northern Pike, Green Sunfish, Brook Silverside.

LillinonahTrail NorthernLakeFacingNorthWithBoat.JPG
H. Morrow Long · CC BY-SA 3.0

Water and conditions

Water clarity runs 6.1–10.8 feet on our readings, averaging 8.5 feet, from 53 readings. Our water temperature readings average 66°F; they do not cover the whole year, so this is not a yearly average. pH averages 7.8. These readings span 2016–2024.

2 ramps and launches on this water

On this water we hold 2 boat ramps.

  • Lake Lillinonah (Pond Brook) Boat Launch — on Pond Brook, Newtown, Housatonic River Water Access. 158 Hanover Road, Newtown · website portal.ct.gov/DEEP/Boating/Boat-Launches/Lake-Lillinonah-Pond-Brook-Boat-Launch
  • Lake Lillinonah Boat Launch — Bridgewater, Lake Lillinonah Water Access. 199 Main Street South, Bridgewater · website portal.ct.gov/DEEP/Boating/Boat-Launches/Lake-Lillinonah-Boat-Launch---Bridgewater

Fee and opening hours are blank for all 2 places in this list: a blank means we hold no such field, not that it is free or always open, and this list may not be complete.

What is hard here

Only 2 public ramps are on file, so the launch decides where you fish.

Where this data comes from

  • Connecticut DEEP — Connecticut DEEP: depth contours: class A, a survey of the bottom.
  • Webster, K.E., McCullough, I.M., Soranno, P.A. LAGOS-US DEPTH v1.0, EDI, doi:10.6073/pasta/64ddc4d04661d9aef4bd702dc5d8984f (CC BY 4.0); Cheruvelil et al. LAGOS-US LOCUS v1.0 (EDI) — LAGOS-US DEPTH v1.0: Lake depth for 17,675 lakes in the conterminous U.S.: class B, a depth figure measured and published by an agency, without a bottom map.