Lake Sammamish fishing: Largemouth Bass, Smallmouth Bass, Cutthroat Trout

Target species: Largemouth Bass, Smallmouth Bass, Cutthroat Trout, Rainbow Trout, Black Crappie, Bluegill, Yellow Perch

The lake

Lake Sammamish covers 4,857 acres in Washington, across King County. It is a lake: the deepest point measured is at least 25 feet (7.6 m). Our records hold 11 species for this water.

Aerial Lake Sammamish November 2011.jpg
Jelson25 · CC BY-SA 3.0

7 target fish, led by Largemouth Bass

  • Largemouth Bass — Feeding water: 65–85°F.
  • Smallmouth Bass — Feeding water: 60–75°F.
  • Cutthroat Trout — Feeding water: 50–65°F.
  • Rainbow Trout — Feeding water: 50–65°F.
  • Black Crappie — Feeding water: 65–75°F.
  • Bluegill — Feeding water: 70–85°F.
  • Yellow Perch — Feeding water: 45–75°F.

Also recorded here: Pumpkinseed, American Shad, Brown Bullhead, Fathead Minnow.

Lake Sammamish State Park aerial, April 2023.png
Spicypepper999 · CC0

Depth and bottom

Deepest measured point: at least 25 ft (7.6 m). That is the deepest contour line: the bottom goes deeper. EPA NLA measured 92.5 ft (28.2 m) at one sampling site: that is not the maximum of the water. We hold 63 depth contour lines for this water.

Lake Sammamish from Marymoor Park.jpg
Kayamon (talk) · CC BY-SA 3.0
  • 0–2 ft: 3.2% of the water
  • 2–4 ft: 3.2% of the water
  • 4–6 ft: 3.2% of the water
  • 6–8 ft: 3.2% of the water
  • 8–10 ft: 3.5% of the water
  • 10–12 ft: 4.5% of the water
  • 12–14 ft: 5% of the water
  • 14–16 ft: 5.3% of the water
  • 16–18 ft: 6.3% of the water
  • 18–20 ft: 11% of the water
  • 20–22 ft: 16.7% of the water
  • 22–24 ft: 11.7% of the water
  • 24–25 ft: 23.1% of the water

Where this data comes from

  • Washington State Department of Ecology — Washington State Department of Ecology: depth contours: class A, a survey of the bottom.
  • EPA NLA — EPA National Lakes Assessment: class B, a depth figure measured and published by an agency, without a bottom map.
  • 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.