Minnesota · Cass County
Agate Lake Fishing guide
Agate Lake covers 157 acres in Cass County, Minnesota, reaching 9 ft at its deepest point. The Minnesota DNR has surveyed the lake 1 time, most recently in 1988, with walleye, largemouth bass, northern pike and bluegill in the nets. That survey is 38 years old now.
DNR survey data
Fish species
The DNR last surveyed Agate Lake in 1988. Ratings need a survey from the last 20 years, so this page lists the species from that older record without numbers.
- Walleye
- Largemouth bass
- Northern pike
- Bluegill
- Crappie
- Yellow perch
- Rock bass
How to fish Agate Lake through the year
Crappie
- Spring
- Crappie are up in the back bays and against wood in a few feet of water, spawning shallower than most people fish for them.
- Early summer
- Crappie are pulling off the bays to the first deep weed edge and brush, still reachable shallow at dusk.
- Summer
- Crappie are over the basin of a stratified lake, well off any structure, which is why summer netting barely catches them inshore. With 100% of this lake 15 ft or shallower, the weed edge is the main event.
- Fall
- Crappie are schooled along the deep weedline and the basin edge, pushing shallow to feed at dusk while the water still turns over slowly. A 9-ft bowl cools fast, so the fall window comes early here.
Walleye
- Spring
- Walleye are shallow, on and just off the spawning flats and the first green weeds.
- Early summer
- Walleye are setting up on the outside weed edge, points and shallow structure.
- Summer
- Walleye are working the weed edge, points and any wind-blown structure. With 100% of this lake 15 ft or shallower, the weed edge is the main event.
- Fall
- Walleye are packing onto the sharpest breaks and points as the water cools, in big schools with short windows. A 9-ft bowl cools fast, so the fall window comes early here.
Season patterns for each species. Open the live map for today's wind, light and water temp.
Suggested tackle
What to bring
Top presentations for this lake's structure and clarity:
Crappie · Jigs & bladed
Beetle Spin
1.5–2" curly-tail grub trailer on a small in-line spinner jighead
Crappie · Soft plastics
Tungsten Jig + Micro Plastic
1–1.5" micro plastic
Walleye · Soft plastics
Curly-Tail Grub on Jig
3" curly-tail grub threaded on a round jighead
Largemouth bass · Hardbaits
Topwater Popper
2.5–3" concave-face popper
Largemouth bass · Hardbaits
Hollow-Body Frog
3–3.5" hollow-body frog
Full setups, including hooks, weights and line, are on the live map. As an Amazon Associate I earn from qualifying purchases.
DNR stocking records
Stocking history
| Year | Species | Stocked |
|---|---|---|
| 2024 | Black Crappie | 500 fingerlings |
MN DNR · in their words
From the 1988 survey
The northern pike net catches exceed the third quartile of the area median indicating an above average population. Age groups from 1-5 years were represented. The four year olds represented 45.6% of the fish. Length groups 11.5 to 26.9 inches were represented. The average weight was over 2.0 pounds. Growth rates 1,2,3 and 4 year olds were above average, while 5 year olds growth rates were below average growth.White sucker net catches in the first quartile indicate a low population. The length group 20.0 to 20.9 inches were represented. The average weight was 3 pounds.The brown bullhead, largemouth bass, pumpkinseed, bluegill, black crappie and yellow perch net catches indicate average populations for the area median. Brown bullheads average around .25 pound. Rock bass had no data for population status for Lake Group 1. Average weight around .7 pound.The pumpkinseed were small in size with 4.0 to 6.0 inches being the majority.The bluegills were small with the length groups 3.0 to 6.9 inches represented. The growth rates were slow for all age groups. Age groups 4-8 years were represented.The black crappie average weight was around .25 pound while the length groups 4.5 to 10.4 inches were represented. The growth rates were slow for all age groups. Age groups 3-8 years were represented.The yellow perch length groups 6.0 to 8.4 inches were represented. Age groups 2,3,5 and 6 years were represented. The growth rates for 2 year old yellow perch was above average, while for 3,5 and 6 year old yellow perch the growth rates were below average.The walleye length frequency groups represented were 19.0 to 24.9 inches. The average weights were around 2.1 pounds with age groups 6,7 and 8 years being represented. The growth rates below average for 6 and 7 year olds. No data was available for Lake Group 1 population status.The largemouth bass length frequency groups represented were 6.0 to 15.9 inches. The average weights were .8 pound. Age groups 3.4 and 6 years old were represented. The growth rates were slow for all age groups.
Narrative text from the Minnesota DNR lake survey.
Recent reports
Agate Lake fishing reports
Recent reports on Agate Lake from guides, tournaments and regular anglers. Anything posted in the last two weeks also bumps the matching spots on the live map, so you'll see a "matches a recent report" tag on them.
DNR bathymetry
Agate Lake depth map
Within 30 miles
Nearby lakes
- Gull Lake · 10,010 ac · 1.4 mi
- Margaret Lake · 251 ac · 2.8 mi
- Love Lake · 79 ac · 2.8 mi
- Round Lake · 1,650 ac · 4.3 mi
- Green Bass Lake · 44 ac · 4.6 mi
- Roy Lake · 320 ac · 4.8 mi
- Upper Gull Lake · 422 ac · 4.9 mi
- Ray Lake · 143 ac · 5 mi
Quick answers
Frequently asked questions
How deep is Agate Lake?
Agate Lake reaches 9 ft at its deepest point; about 100% of the lake is littoral (15 ft or shallower).
How big is Agate Lake?
Agate Lake covers 157 acres with about 1.9 miles of shoreline.
What fish are in Agate Lake?
Minnesota DNR surveys (most recently 1988) record walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch, rock bass.
Is Agate Lake stocked?
Yes. The DNR stocked black crappie in 2024.
When was Agate Lake last surveyed?
The Minnesota DNR last surveyed Agate Lake in 1988. That is more than 20 years ago, so this page lists species without ratings.
Page updated .
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