Duncan Lake Depth Map & Fishing Spots

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are interpolated from real agency depth surveys (state DNR / USACE). Never use for navigation. Always check local regulations.

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Recent catches at Duncan Lake

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Fishing Duncan Lake: what the data says

396-acre reservoir near Oklahoma. The lake tops out around 25 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. What follows comes from the same scoring engine that paints the spots above.

Largemouth Bass fishing at Duncan Lake

In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 8 to 25 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring largemouth bass. Best bite is early morning and the evening. Tie on a texas-rigged 10" worm or a deep-diving crankbait and you're in the game.

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	8 to 25 ft	midday	Blade bait, Jigging spoon

Channel Catfish fishing at Duncan Lake

In spring, channel catfish run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 8 to 25 ft, and winter fish settle into 8 to 25 ft. Deep basin is the standout, a deep basin at roughly 25 ft, rated prime for winter channel catfish. Best bite is after dark and the evening.

Season	Depth	Best window
Spring	3 to 12 ft	dusk
Summer	8 to 25 ft	night & dusk
Fall	8 to 25 ft	dusk
Winter	8 to 25 ft	midday

Crappie fishing at Duncan Lake

Start shallow in spring: crappie sit in 2 to 8 ft that time of year. Summer pushes them deeper, 10 to 25 ft, and winter fish settle into 8 to 25 ft. If you only fish one area, make it Deep basin: a deep basin around 25 ft that scores prime in winter. Best bite is early morning and the evening. 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	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	8 to 25 ft	midday	Tungsten jig + soft plastic, Tiny jigging spoon

Bluegill fishing at Duncan Lake

Spring bluegill on Duncan Lake hold shallow, usually 1 to 6 ft. By summer they slide out to 4 to 15 ft, and by winter most fish are in 10 to 25 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft that scores prime in spring. Best bite is early morning and the evening. Summer baits: a small sponge spider (fly) or a micro tube jig gets it done.

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 25 ft
Break off the point: drop-off, around 20 ft
Main-lake point: point, around 6 ft
Secondary point: point, around 6 ft
Shallow bay flat: weed flat, around 3 ft
Back-bay flat: weed flat, around 2 ft

Common questions

How deep is Duncan Lake?

Duncan Lake is about 25 ft (8 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.

What fish are in Duncan Lake?

Anglers target largemouth bass, crappie, bluegill, channel catfish on Duncan Lake. This isn't a survey of the lake — none is on record for it — but an informed estimate from the species listed for the nearest surveyed lakes in the region, filtered to this lake's depth and habitat.

Where is the best fishing spot on Duncan Lake?

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

When is the best time to fish Duncan Lake?

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

Nearby waters

Clear Creek Lake · Waurika Lake · Lake Jap Beaver · Healdton City Lake · Lake Louis Burtschi · Dave Boyer Lake

See how Duncan Lake stacks up: best largemouth bass lakes in Oklahoma · best crappie lakes in Oklahoma · best bluegill lakes in Oklahoma · best channel catfish lakes in Oklahoma

Browse all Oklahoma fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.