Minnesota · DNR survey data

Jacob Lake

Jacob Lake covers 22 acres in St. Louis County, running to 52 feet, last surveyed by the DNR in 2024. The Minnesota DNR has not published bathymetry for this lake, so there is no depth map here, just the survey record: what the nets held and how big it ran.

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DNR survey data

Fish species

Species
How many
Survey numbers
Lengths
Brook troutStocked · 2025
Present, stocked

Present and managed by the DNR.

7"14"

Lengths measured · 18 fish

Recent · 2024
6"8"10"12"14"16"17"

Lengths measured · 18 fish

2024
6"8"10"12"14"16"17"

Lengths measured · 23 fish

2019
6"8"10"12"14"16"17"

Lengths measured · 9 fish

2014
6"8"10"12"14"16"17"

Only 9 fish measured that year — too few to read as a shape.

Lengths measured · 9 fish

2006
6"8"10"12"14"16"17"

Only 9 fish measured that year — too few to read as a shape.

Rainbow trout
Present (last recorded 1983)

Last recorded in the 1983 survey and not seen since.

Splake
Present (last recorded 1990)

Last recorded in the 1990 survey and not seen since.

Rates come from standard DNR survey gear (gill nets, trap nets, electrofishing), judged against statewide benchmarks for the same gear — which is why the same number of fish per net can read differently for two species. Where the standard gear can't count a species reliably, the page shows presence and size only. Typical is the middle fish of those measured. Open a row for the full length spread, survey by survey. You can read every number on this page without an app or an account.

DNR stocking records

Stocking history

YearSpeciesStocked
2025Brook Trout1,600 fingerlings
2024Brook Trout1,600 fingerlings
2023Brook Trout1,600 fingerlings
2022Brook Trout1,338 fingerlings
2021Brook Trout1,600 fingerlings
2020Brook Trout1,600 fingerlings
2018Brook Trout1,728 fingerlings
2017Brook Trout1,600 fingerlings
2016Brook Trout750 yearlings

Recent reports

Jacob Lake fishing reports

Recent reports on Jacob 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.

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St. Louis County reports

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

Is there a depth map for Jacob Lake?

The Minnesota DNR has not published bathymetry for Jacob Lake, so this page carries the survey record instead: species, catch rates and stocking history.

What fish are in Jacob Lake?

The most recent DNR survey (2024) recorded brook trout, rainbow trout, splake.

Is Jacob Lake stocked?

Yes. The DNR stocked brook trout in 2025; the stocking table on this page lists every year back to 2016.

When was Jacob Lake last surveyed?

The Minnesota DNR last surveyed Jacob Lake in 2024, the most recent of 12 surveys on record.

Survey numbers are the Minnesota DNR's. How this site reads them →

Page updated .