Blue Lake fishing: Northern Pike, Largemouth Bass, Walleye
Target species: Northern Pike, Largemouth Bass, Walleye, Channel Catfish, Bluegill
The lake
Blue Lake covers 281 acres in Iowa, across Monona County. It is a lake: the deepest point measured is at least 10 feet (3 m). Our records hold 6 species for this water.

5 target fish, led by Northern Pike
- Northern Pike — Feeding water: 50–75°F.
- Largemouth Bass — Feeding water: 65–85°F.
- Walleye — Feeding water: 50–75°F.
- Channel Catfish — Feeding water: 70–85°F.
- Bluegill — Feeding water: 70–85°F.
Also recorded here: Common Carp.

Stocking: 418,951 fish, 1999–2024
Iowa DNR records list 418,951 fish released into this water from 1999 to 2024.

- Bluegill: 247,472 in 2007
- Largemouth Bass: 62,710 in 2002–2008
- Channel Catfish: 57,858 in 1999–2024
- Northern Pike: 45,855 in 1999–2019
- Walleye: 5,056 in 2013
Depth and bottom
Deepest measured point: at least 10 ft (3 m). That is the deepest contour line: the bottom goes deeper. We hold 28 depth contour lines for this water.
- 0–1 ft: 5.3% of the water
- 1–2 ft: 9.4% of the water
- 2–3 ft: 12.4% of the water
- 3–4 ft: 11.9% of the water
- 4–5 ft: 12.2% of the water
- 5–6 ft: 11.9% of the water
- 6–7 ft: 12% of the water
- 7–8 ft: 12.7% of the water
- 8–10 ft: 12.2% of the water
Water and conditions
Our water temperature readings average 76°F; they do not cover the whole year, so this is not a yearly average. pH averages 8.4. These readings span 2017–2024.
Where this data comes from
- Iowa DNR — Iowa DNR: 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.



















