Minnesota · DNR survey data
Iron Lake
Iron Lake covers 1,962 acres in St. Louis County, running to 64 feet, last surveyed by the DNR in 2025. 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.
DNR survey data
Fish species
WalleyeExcellent numbers7.3per gill net13"Typical24"Biggest
Lengths measured · 87 fish
No recent survey rating.
Northern pikeJust a few2.9per gill net23"Typical39"Biggest
Lengths measured · 35 fish
Yellow perchJust a few0.9per gill net7"Typical10"Biggest
Lengths measured · 11 fish
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.
Recent reports
Iron Lake fishing reports
Recent reports on Iron 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.
Within 30 miles
Nearby lakes
- Stuart Lake · 776 ac · 3.8 mi
- Agnes Lake · 1,045 ac · 4.8 mi
- Toe Lake · 169 ac · 6.1 mi
- Bear Trap Lake · 122 ac · 6.8 mi
- Oyster Lake · 763 ac · 7.5 mi
- Crooked Lake · 10,360 ac · 7.5 mi
- Ge-Be-On-Equat Lake · 660 ac · 8.9 mi
- Hustler Lake · 277 ac · 9.7 mi
Quick answers
Frequently asked questions
Is there a depth map for Iron Lake?
The Minnesota DNR has not published bathymetry for Iron Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Iron Lake?
The most recent DNR survey (2025) recorded walleye, smallmouth bass, northern pike, crappie, yellow perch, rock bass, sauger.
Is Iron Lake stocked?
No stocking is on record for Iron Lake in the DNR's stocking database.
When was Iron Lake last surveyed?
The Minnesota DNR last surveyed Iron Lake in 2025, the most recent of 4 surveys on record.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .