Lake Thirty Fishing Map — 30 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 Lake Thirty

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Fishing Lake Thirty: what the data says

20-acre lake near Wisconsin. The lake tops out around 30 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 Lake Thirty

Spring yellow perch on Lake Thirty hold shallow, usually 3 to 12 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 9 to 30 ft. If you only fish one area, make it Deep basin: a deep basin around 26 ft that scores prime in fall. Plan around early morning in the warm months. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.

Season	Depth	Best window	Go-to baits
Spring	3 to 12 ft	midday & dawn	Small jig + curly tail, Perch-pattern micro crank
Summer	10 to 30 ft	dawn	Drop-shot micro plastics, Small spoon tipped with worm
Fall	9 to 30 ft	midday	Jigging spoon (small), Perch rig / spreader
Winter	9 to 30 ft	midday & dawn	Tungsten jig + spikes, Rattle spoon (small)

Largemouth Bass fishing at Lake Thirty

In spring, largemouth bass run shallow here, mostly 2 to 10 ft. They move out to 8 to 20 ft in summer and finish the year down in 9 to 30 ft. The spot to know is Main-lake point, a point in about 8 ft of water that rates prime for largemouth bass in fall. 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	9 to 30 ft	midday	Blade bait, Jigging spoon

Crappie fishing at Lake Thirty

In spring, crappie run shallow here, mostly 2 to 8 ft. They move out to 10 to 25 ft in summer and finish the year down in 9 to 30 ft. If you only fish one area, make it Deep basin: a deep basin around 26 ft that scores prime in winter. Best bite is early morning and the evening. Summer baits: a jig trolled/spider-rigged or a small crankbait (trolled) gets it done.

Season	Depth	Best window	Go-to baits
Spring	2 to 8 ft	midday & dawn	1/16 oz jig + tube, Curly-tail grub
Summer	10 to 25 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	9 to 30 ft	midday	Tungsten jig + soft plastic, Tiny jigging spoon

Bluegill fishing at Lake Thirty

In spring, bluegill run shallow here, mostly 1 to 6 ft. They move out to 4 to 15 ft in summer and finish the year down in 10 to 25 ft. Deep basin is the standout, a deep basin at roughly 26 ft, rated prime for winter bluegill. Plan around early morning and the evening in the warm months. 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	10 to 25 ft	midday	Tungsten ice jig + plastic, Tiny spoon

Notable structure

Deep basin: deep basin, around 26 ft
Break off the point: drop-off, around 14 ft
Main-lake point: point, around 8 ft

Common questions

How deep is Lake Thirty?

Lake Thirty is about 30 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 Lake Thirty?

Anglers target largemouth bass, crappie, bluegill, yellow perch on Lake Thirty. 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 Lake Thirty?

Deep basin is the top-rated area: a deep basin in about 26 ft of water that rates prime for yellow perch in fall. Open the map above to see every rated spot for each species and season.

When is the best time to fish Lake Thirty?

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

Lake Nineteen · Hulls Lake · Scoof Lake · Pickerel Lake · Salem Lake · Cranberry Lake

See how Lake Thirty 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.