One Island Lake Fishing Map — 20 ft Deep, Spots (WI)

Target species

Species from state lake data, resolved by location. These species come from the Wisconsin DNR's own per-lake fish listing. Where the DNR reports a group rather than a species — “panfish”, “catfish”, “trout” — the specific species are resolved from Wisconsin's fish distribution by this lake's location, depth and habitat, so those are an informed estimate, not a per-species survey. The named gamefish (walleye, musky, bass, pike, sturgeon…) are the DNR's own listing. (The depth chart is a computer-generated estimate from the lake's real shoreline and the DNR's maximum depth — not measured contours.) How we estimate species →

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours on this water are approximations. Never use for navigation. Always check local regulations.

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Recent catches at One Island Lake

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Fishing One Island Lake: what the data says

10-acre lake near Wisconsin. The lake tops out around 20 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Below is the species-by-species picture, pulled from the same data the map uses.

Yellow Perch fishing at One Island Lake

Spring yellow perch on One Island Lake hold shallow, usually 3 to 12 ft. They move out to 6 to 20 ft in summer and finish the year down in 6 to 20 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Plan around early morning in the warm months. Summer baits: a drop-shot micro plastics or a small spoon tipped with worm gets it done.

Season	Depth	Best window	Go-to baits
Spring	3 to 12 ft	midday & dawn	Small jig + curly tail, Perch-pattern micro crank
Summer	6 to 20 ft	dawn	Drop-shot micro plastics, Small spoon tipped with worm
Fall	6 to 20 ft	midday	Jigging spoon (small), Perch rig / spreader
Winter	6 to 20 ft	midday & dawn	Tungsten jig + spikes, Rattle spoon (small)

Largemouth Bass fishing at One Island Lake

Start shallow in spring: largemouth bass sit in 2 to 10 ft that time of year. By summer they slide out to 8 to 20 ft, and by winter most fish are in 6 to 20 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait covers the summer program.

Season	Depth	Best window	Go-to baits
Spring	2 to 10 ft	dawn & dusk	Spinnerbait, Chatterbait
Summer	8 to 20 ft	dawn & dusk	Texas-rigged 10" worm, Deep-diving crankbait
Fall	4 to 15 ft	midday & dawn	Squarebill crankbait (shad), Spinnerbait
Winter	6 to 20 ft	midday	Blade bait, Jigging spoon

Crappie fishing at One Island Lake

Spring crappie on One Island Lake hold shallow, usually 2 to 8 ft. By summer they slide out to 6 to 20 ft, and by winter most fish are in 6 to 20 ft. Deep basin is the standout, a deep basin at roughly 17 ft, rated prime for winter crappie. Plan around early morning and the evening in the warm months. A jig trolled/spider-rigged or a small crankbait (trolled) covers the summer program.

Season	Depth	Best window	Go-to baits
Spring	2 to 8 ft	midday & dawn	1/16 oz jig + tube, Curly-tail grub
Summer	6 to 20 ft	dawn & dusk	Jig trolled/spider-rigged, Small crankbait (trolled)
Fall	8 to 20 ft	dawn	Jig + minnow combo, Small swimbait (1.5-2")
Winter	6 to 20 ft	midday	Tungsten jig + soft plastic, Tiny jigging spoon

Bluegill fishing at One Island Lake

Start shallow in spring: bluegill sit in 1 to 6 ft that time of year. Summer pushes them deeper, 4 to 15 ft, and winter fish settle into 6 to 20 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for bluegill in spring. In summer the feeding windows fall in early morning and the evening. Tie on a small sponge spider (fly) or a micro tube jig and you're in the game.

Season	Depth	Best window	Go-to baits
Spring	1 to 6 ft	midday & dusk	1/32 oz jig + micro plastic, Tiny popper (evenings)
Summer	4 to 15 ft	dawn & dusk	Small sponge spider (fly), Micro tube jig
Fall	6 to 18 ft	midday	Micro jig + waxworm, Small spoon tipped
Winter	6 to 20 ft	midday	Tungsten ice jig + plastic, Tiny spoon

Pumpkinseed fishing at One Island Lake

Spring pumpkinseed on One Island Lake hold shallow, usually 1 to 8 ft. They move out to 2 to 10 ft in summer and finish the year down in 6 to 18 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for pumpkinseed in spring. Plan around the evening and early morning in the warm months. Summer baits: a micro tube or a sponge spider (fly) gets it done.

Season	Depth	Best window	Go-to baits
Spring	1 to 8 ft	midday & dusk	Micro jig under a float, Tiny beetle-spin
Summer	2 to 10 ft	dusk & dawn	Micro tube, Sponge spider (fly)
Fall	4 to 14 ft	dusk & dawn	Micro jig + waxworm, Small spoon tipped
Winter	6 to 18 ft	dawn	Tungsten ice jig + plastic, Tiny spoon

Notable structure

Deep basin: deep basin, around 17 ft
Shoreline break: drop-off, around 9 ft
Shallow bay flat: weed flat, around 3 ft
Back-bay flat: weed flat, around 3 ft

Common questions

How deep is One Island Lake?

One Island Lake is about 20 ft at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.

What fish are in One Island Lake?

Anglers target largemouth bass, crappie, bluegill, yellow perch, pumpkinseed on One Island Lake. These come from the Wisconsin DNR's per-lake fish listing; where the DNR lists a group (panfish, catfish, trout) the specific species are resolved from Wisconsin's fish distribution by the lake's location, depth and habitat.

Where is the best fishing spot on One Island Lake?

Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Open the map above to see every rated spot for each species and season.

When is the best time to fish One Island Lake?

For yellow perch, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.

Nearby waters

Stevens Pond · Lake One · Perch Lake · Lake Two · Little Bass Lake · Two Island Lake

See how One Island Lake stacks up: best largemouth bass lakes in Wisconsin · best crappie lakes in Wisconsin · best bluegill lakes in Wisconsin · best yellow perch lakes in Wisconsin

Browse all Wisconsin fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.