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Fishing Monroe Lake: what the data says
10,750-acre reservoir near Bloomington. Indiana's largest inland lake; hybrids, crappie and big flatheads. The lake tops out around 54 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 Monroe 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 15 to 35 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 6 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 | 15 to 35 ft | midday | Blade bait, Jigging spoon |
Crappie fishing at Monroe Lake
In spring, crappie run shallow here, mostly 2 to 8 ft. By summer they slide out to 10 to 25 ft, and by winter most fish are in 15 to 35 ft. Old creek channel is the standout, a creek channel at roughly 27 ft, rated prime for winter crappie. In summer the feeding windows fall in early morning and the evening. Tie on a jig trolled/spider-rigged or a small crankbait (trolled) and you're in the game.
| 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 | 15 to 35 ft | midday | Tungsten jig + soft plastic, Tiny jigging spoon |
Bluegill fishing at Monroe Lake
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. If you only fish one area, make it Shallow bay flat: a weed flat around 6 ft that scores prime in spring. Best bite is 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 | 10 to 25 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
Channel Catfish fishing at Monroe Lake
Start shallow in spring: channel catfish sit in 3 to 12 ft that time of year. By summer they slide out to 8 to 25 ft, and by winter most fish are in 20 to 40 ft. If you only fish one area, make it North Fork Salt Creek inflow: a inflow / creek mouth around 5 ft that scores prime in spring. In summer the feeding windows fall in after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | |
| Summer | 8 to 25 ft | night & dusk | |
| Fall | 10 to 30 ft | dusk | |
| Winter | 20 to 40 ft | midday |
Walleye fishing at Monroe Lake
Start shallow in spring: walleye sit in 4 to 15 ft that time of year. They move out to 15 to 35 ft in summer and finish the year down in 20 to 40 ft. If you only fish one area, make it North Fork Salt Creek inflow: a inflow / creek mouth around 5 ft that scores prime in spring. Plan around the evening and early morning in the warm months. A crawler harness on bottom bouncer or a deep crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
White Bass & Hybrids fishing at Monroe Lake
Start shallow in spring: white bass & hybrids sit in 3 to 15 ft that time of year. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 20 to 40 ft. North Fork Salt Creek inflow is the standout, a inflow / creek mouth at roughly 5 ft, rated prime for spring white bass & hybrids. Plan around early morning and the evening in the warm months. Summer baits: a jigging spoon or a topwater (when schooling) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 15 ft | midday & dawn | Rooster tail / inline spinner, Curly-tail jig (white/chartreuse) |
| Summer | 10 to 30 ft | dawn & dusk | Jigging spoon, Topwater (when schooling) |
| Fall | 8 to 25 ft | midday & dawn | Small blade bait, Jigging spoon |
| Winter | 20 to 40 ft | midday | Jigging spoon, Blade bait (vertical) |
Monroe Lake also holds flathead catfish (8 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Notable structure
- Old creek channel: creek channel, around 27 ft
- Main-lake point: point, around 14 ft
- Secondary point: point, around 14 ft
- Deep basin: deep basin, around 10 ft
- Marina / dock area: dock line, around 10 ft
- Deepest basin: deep basin, around 10 ft
- Shallow bay flat: weed flat, around 6 ft
- North Fork Salt Creek inflow: inflow / creek mouth, around 5 ft
- Creek inflow: inflow / creek mouth, around 5 ft
- Back-bay flat: weed flat, around 3 ft
- Sharp break: drop-off, around 3 ft
- Break off the point: drop-off, around 2 ft
Common questions
How deep is Monroe Lake?
Monroe Lake is about 54 ft 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 Monroe Lake?
Anglers target largemouth bass, walleye, crappie, bluegill, channel catfish, white bass & hybrids, flathead catfish on Monroe Lake.
Where is the best fishing spot on Monroe Lake?
Shallow bay flat is the top-rated area: a weed flat in about 6 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 Monroe 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
Crooked Creek Lake · Yellowwood Lake · Griffy Lake · East Fork White River · Lake Lemon · Spring Mill Lake
See how Monroe Lake stacks up: best largemouth bass lakes in Indiana · best walleye lakes in Indiana · best crappie lakes in Indiana · best bluegill lakes in Indiana
Browse all Indiana fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.