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Fishing Grass Lake: what the data says
2,187-acre lake near Codington County. The lake tops out around 9 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. What follows comes from the same scoring engine that paints the spots above.
Yellow Perch fishing at Grass Lake
In spring, yellow perch run shallow here, mostly 2 to 9 ft. Summer fish stay in 3 to 9 ft, and winter fish hold in 3 to 9 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring yellow perch. Best bite is early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 9 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 9 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 9 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 9 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Crappie fishing at Grass Lake
In spring, crappie run shallow here, mostly 2 to 8 ft. By summer they slide out to 3 to 9 ft, and by winter most fish are in 3 to 9 ft. The spot to know is Deep basin, a deep basin in about 8 ft of water that rates prime for crappie 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 | 3 to 9 ft | dawn & dusk | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 3 to 9 ft | dawn | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 3 to 9 ft | midday | Tungsten jig + soft plastic, Tiny jigging spoon |
Bluegill fishing at Grass Lake
Start shallow in spring: bluegill sit in 1 to 6 ft that time of year. They move out to 2 to 9 ft in summer and finish the year down in 3 to 9 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. 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 | 2 to 9 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 3 to 9 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 3 to 9 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
Northern Pike fishing at Grass Lake
In spring, northern pike run shallow here, mostly 2 to 8 ft. They move out to 3 to 9 ft in summer and finish the year down in 3 to 9 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring northern pike. Plan around early morning and the evening in the warm months. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 9 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 9 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 9 ft | midday | Tip-ups, Large jigging spoon |
Walleye fishing at Grass Lake
Start shallow in spring: walleye sit in 2 to 9 ft that time of year. Summer fish stay in 3 to 9 ft, and winter fish hold in 3 to 9 ft. Break off the point is the standout, a drop-off at roughly 4 ft, rated prime for fall walleye. In summer the feeding windows fall in the evening and early morning. Summer baits: a crawler harness on bottom bouncer or a deep crankbait (trolled) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 9 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 3 to 9 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 3 to 9 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 3 to 9 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Largemouth Bass fishing at Grass Lake
Start shallow in spring: largemouth bass sit in 2 to 9 ft that time of year. Summer fish stay in 3 to 9 ft, and winter fish hold in 3 to 9 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for largemouth bass in spring. In summer the feeding windows fall in 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 9 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 3 to 9 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 2 to 9 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 3 to 9 ft | midday | Blade bait, Jigging spoon |
Grass Lake also holds brown bullhead (2 to 9 ft in summer), white bass (3 to 9 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Notable structure
- Main-lake point: point, around 8 ft
- Secondary point: point, around 8 ft
- Deep basin: deep basin, around 8 ft
- Break off the point: drop-off, around 4 ft
- Shallow bay flat: weed flat, around 3 ft
- Back-bay flat: weed flat, around 3 ft
Common questions
How deep is Grass Lake?
Grass Lake is about 9 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 Grass Lake?
Anglers target largemouth bass, walleye, white bass, northern pike, crappie, bluegill, yellow perch, brown bullhead on Grass Lake.
Where is the best fishing spot on Grass 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 Grass 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
Dry Lake · Long Lake · Swan Lake · Bitter Lake · Kampeska Lake · Goose Lake
See how Grass Lake stacks up: best largemouth bass lakes in South Dakota · best walleye lakes in South Dakota · best white bass lakes in South Dakota · best northern pike lakes in South Dakota
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