Hart Lake
Hubbard County, Minnesota, near Guthrie. DNR lake ID 29006300.
Hart Lake is a 226.3-acre lake in Hubbard County, Minnesota, near Guthrie. Its deepest point reaches 13 ft, and about 100% of the lake is shallower than 15 feet. Summer water clarity averages 4.7 feet in Minnesota Pollution Control Agency monitoring, which places it in the eutrophic nutrient class. It is not on the DNR infested waters list as of September 2026.
Buying or selling on Hart Lake? Ask us what lakeshore here actually sells for, which stretches of shoreline buyers compete for, and what’s coming up before it’s listed.
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Quick facts
| DNR lake ID | 29006300 |
|---|---|
| County | Hubbard County, near Guthrie |
| Surface area | 226.3 acres |
| Maximum depth | 13 ft |
| Share under 15 ft | 100% |
| Water clarity (summer) | 4.7 ft through 2023 |
| Phosphorus (summer) | 50.9 µg/L |
| Algae, chlorophyll-a (summer) | 15.5 µg/L |
| Nutrient class | Eutrophic |
| Invasive species | Not on DNR infested waters list (Sept 2026) |
| Public water accesses | 1 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2023: clarity 4.7 ft, phosphorus 50.9 µg/L, algae (chlorophyll-a) 15.5 µg/L. Using the Carlson trophic state index, Hart Lake rates as eutrophic.
Fishing on Hart Lake
The most recent DNR standard fish survey was in 1977 (49 years ago). Catch per net is compared with the DNR’s typical range for lakes of the same type.
| Species | Net | Catch per net | Typical range |
|---|---|---|---|
| Walleye | gill | 1.0 | 1.5 to 5.8 |
| Northern pike | gill | 1.0 | 4.6 to 11.6 |
| Northern pike | trap | 1.25 | n/a |
| Yellow perch | gill | 15.5 | 8.0 to 40.3 |
| Yellow perch | trap | 3.25 | 0.8 to 4.5 |
| Black crappie | trap | 0.5 | 0.8 to 6.5 |
| Pumpkinseed | trap | 0.75 | 1.4 to 8.6 |
Walleye catch was below the typical range for similar lakes in that survey.
Fishing regulations
No lake-specific regulation found in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Regulations change. Confirm with the DNR before fishing.
Invasive species
Not on the Minnesota DNR infested waters list as of September 2026. That means no confirmed listing, not a guarantee the lake is free of invasive species.
Public boat access
- Hart Lake: 1 natural launch ramp. 2 miles east of Guthrie, on CSAH 16, on the north shore of Hart Lake. Directions
DNR water access records (2023). Confirm current conditions with the DNR.
Nearby lakes
- Garfield Lake 4.5 mi, Hubbard County
- Steamboat Lake 4.7 mi, Cass County
- Midge Lake 7.0 mi, Hubbard County
- Portage Lake 7.2 mi, Cass County
- Swamp Lake 7.3 mi, Cass County
- Horseshoe Lake 7.9 mi, Hubbard County
- Grace Lake 8.2 mi, Hubbard County
- Little Wolf Lake 8.3 mi, Cass County
Questions about Hart Lake
How deep is Hart Lake?
Hart Lake reaches a maximum depth of 13 ft according to Minnesota DNR records. About 100% of the lake is shallower than 15 feet.
How big is Hart Lake?
Hart Lake covers about 226.3 acres in Hubbard County, Minnesota.
How clear is Hart Lake?
Summer water clarity on Hart Lake averages 4.7 feet (Secchi depth) in MPCA monitoring through 2023. Its trophic state is eutrophic.
Does Hart Lake have zebra mussels or other invasive species?
Hart Lake is not on the Minnesota DNR infested waters list as of September 2026. That means there is no confirmed listing; it is not a guarantee the lake is free of invasive species.
Where is the public boat access on Hart Lake?
Hart Lake has 1 public water access site on DNR record: Hart Lake.
Are there lake homes for sale on Hart Lake?
Homes on Hart Lake come up for sale throughout the year, and some sell before they’re ever publicly advertised. Tell us what you’re looking for and our agents will run a custom search and send you matching homes on Hart Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Hart Lake?
Small, quiet water suited to paddling and fishing, about 100% shallow shoreline under 15 feet, and summer clarity around 4.7 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Hart Lake?
No lake-specific regulation was found for Hart Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Hart Lake
Whether you’re buying, selling, or just curious, our team works Hubbard County lakes every day. Send us a note or call (218) 656-6469.
Sources: Minnesota DNR LakeFinder records, DNR fish surveys (latest 1977), DNR infested waters list (Sept 2026), Minnesota Rules 6264.0400 (April 2026), MPCA monitoring via the Water Quality Portal, DNR water access records (2023), LAGOS-US. Lakewide information from public data; it does not describe any specific property. Verify shoreline, bottom type, and depth at any frontage.