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71-acre lake near Day County. The lake tops out around 16 ft. What you see is a modeled chart: the shoreline is real, the max depth is published, and the contours between are estimated. Plan with it; don't navigate by it. What the data behind the map says about each species, season by season:
Traced from the shoreline, Pierpont Lake runs 72 acres with 2.2 miles of edge. Index 1.9 on the shoreline: a few honest points and pockets, nothing labyrinthine. About 93% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Call it 0.7 mi long by 0.5 mi wide at the broadest reach. The water lies in Day County. Closest neighbour on DepthScout: Lynn Lake, 8 mi east of here.
Spring yellow perch on Pierpont Lake hold shallow, usually 3 to 12 ft. By summer they slide out to 5 to 16 ft, and by winter most fish are in 5 to 16 ft. The chart's best answer is Shallow bay flat — weed flat, 3 ft, prime for spring. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (3 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 5 to 16 ft | dawn | Deep basin (14 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 5 to 16 ft | midday | Deep basin (14 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 5 to 16 ft | midday & dawn | Deep basin (14 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring puts crappie in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 5 to 16 ft, wintering in 5 to 16 ft. Winter crappie concentrate at Deep basin, a prime-rated deep basin around 14 ft. Warm-month bites cluster around early morning and the evening. A jig trolled/spider-rigged or a small crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 5 to 16 ft | dawn & dusk | Deep basin (14 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 5 to 16 ft | dawn | Deep basin (14 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 5 to 16 ft | midday | Deep basin (14 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
The spring pattern is a shallow one: bluegill in 1 to 6 ft. As the season builds they drop to 4 to 15 ft, wintering in 5 to 16 ft. Top water on the chart: Shallow bay flat, a weed flat in the 3 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a small sponge spider (fly) or a micro tube jig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (3 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (3 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 5 to 16 ft | midday | Shallow bay flat (3 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 5 to 16 ft | midday | Deep basin (14 ft) | Tungsten ice jig + plastic, Tiny spoon |
Spring puts northern pike in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 5 to 16 ft, wintering in 5 to 15 ft. Spring northern pike concentrate at Shallow bay flat, a prime-rated weed flat around 3 ft. Warm-month bites cluster around early morning and the evening. A bucktail or a weedless spoon over cabbage covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 5 to 16 ft | dawn & dusk | Main-lake point (8 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 5 to 16 ft | midday & dawn | Main-lake point (8 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (3 ft) | Tip-ups, Large jigging spoon |
Early season walleye use the shallows, holding in 4 to 15 ft. Summer is a 5 to 16 ft game here, winter a 5 to 16 ft one. The chart's best answer is Deep basin — deep basin, 14 ft, prime for winter. Best bite is the evening and early morning. Tie on a crawler harness on bottom bouncer or a deep crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Main-lake point (8 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 5 to 16 ft | dusk & dawn | Main-lake point (8 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 5 to 16 ft | dusk & night | Main-lake point (8 ft) | Jigging rap, Jig + big minnow |
| Winter | 5 to 16 ft | dusk & dawn | Deep basin (14 ft) | Jigging spoon + minnow head, Rattle bait |
Count 4 structure marks on this chart. The deepest, Deep basin, sits near 14 ft.
Access data: South Dakota Game, Fish & Parks — Boat Ramps. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for South Dakota waters are set by the South Dakota Game, Fish and Parks — and special regulations can apply to Pierpont Lake specifically, so confirm the current rules before you fish.
Check the official South Dakota fishing regulations →
Pierpont Lake is about 16 ft (5 m) deep 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.
Anglers target yellow perch, crappie, bluegill, northern pike, walleye on Pierpont Lake. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
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. The map above holds the full rated-spot list for every species and season.
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.
Fishing on Pierpont Lake is regulated by the South Dakota Game, Fish and Parks. Check the official South Dakota regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Lynn Lake 8 mi · Opitz Lake 19 mi · Horseshoe Lake 21 mi · Kettle Lake 21 mi · Waubay Lake 21 mi · Nutleg East 21 mi · Roy Lake 25 mi · Swan Lake 26 mi · Lake Isabella 27 mi · Blue Dog Lake 27 mi · Bitter Lake 27 mi · Pickerel Lake 27 mi
See how Pierpont Lake stacks up: best walleye lakes in South Dakota · best northern pike lakes in South Dakota · best crappie lakes in South Dakota · best bluegill lakes in South Dakota
More water nearby: Day County fishing maps (7 charts). Browse all South Dakota fishing maps or see every water on DepthScout. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.