Hattie Lake
Cass County, Minnesota, near Backus. DNR lake ID 11023200.
Hattie Lake is a 587.8-acre lake in Cass County, Minnesota, near Backus. Its deepest point reaches 30 ft, and about 34% of the lake is shallower than 15 feet. Summer water clarity averages 10.5 feet in Minnesota Pollution Control Agency monitoring, which places it in the mesotrophic nutrient class. It is not on the DNR infested waters list as of September 2026.
Buying or selling on Hattie 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 | 11023200 |
|---|---|
| County | Cass County, near Backus |
| Surface area | 587.8 acres |
| Maximum depth | 30 ft |
| Mean depth | 18.0 ft |
| Share under 15 ft | 34% |
| Water clarity (summer) | 10.5 ft through 2025 |
| Phosphorus (summer) | 17.2 µg/L |
| Algae, chlorophyll-a (summer) | 5.6 µg/L |
| Nutrient class | Mesotrophic |
| Clarity trend | Clearer (2016 to 2025) |
| Invasive species | Not on DNR infested waters list (Sept 2026) |
| Public water accesses | 0 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2025: clarity 10.5 ft, phosphorus 17.2 µg/L, algae (chlorophyll-a) 5.6 µg/L. Using the Carlson trophic state index, Hattie Lake rates as mesotrophic. Summer clarity trend 2016 to 2025: clearer.
Fishing on Hattie Lake
The most recent DNR standard fish survey was in 2002 (24 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 | 3.0 | 1.3 to 5.0 |
| Walleye | trap | 0.22 | 0.3 to 0.7 |
| Northern pike | gill | 12.0 | 3.5 to 10.5 |
| Northern pike | trap | 1.56 | n/a |
| Yellow perch | gill | 9.33 | 3.4 to 43.6 |
| Yellow perch | trap | 0.67 | 0.5 to 3.3 |
| Black crappie | gill | 1.0 | 0.6 to 3.5 |
| Black crappie | trap | 0.22 | 0.7 to 3.4 |
| Bluegill | gill | 3.67 | n/a |
| Bluegill | trap | 24.0 | 6.1 to 46.6 |
| Largemouth bass | gill | 0.89 | 0.3 to 1.7 |
| Largemouth bass | trap | 0.56 | 0.3 to 1.3 |
| Tullibee (cisco) | gill | 1.56 | 0.5 to 4.8 |
| Pumpkinseed | gill | 0.89 | n/a |
| Pumpkinseed | trap | 5.11 | 2.0 to 8.5 |
| Rock bass | gill | 0.78 | 0.3 to 1.9 |
| Rock bass | trap | 2.67 | 0.5 to 1.8 |
Walleye catch was within the typical range for similar lakes in that survey.
Largest fish measured in recent DNR samples: Walleye 26.0 in (2002), Northern pike 36.0 in (2002), Largemouth bass 15.0 in (2002).
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
No public water access on DNR record.
Nearby lakes
- Little Sand Lake 1.2 mi, Cass County
- Brockway Lake 2.0 mi, Cass County
- Sylvan Lake 2.1 mi, Cass County
- Ada Lake 2.3 mi, Cass County
- Johnson Lake 2.4 mi, Cass County
- Horseshoe Lake 2.8 mi, Cass County
- Bass Lake 2.9 mi, Cass County
- Big Portage Lake 2.9 mi, Cass County
Questions about Hattie Lake
How deep is Hattie Lake?
Hattie Lake reaches a maximum depth of 30 ft according to Minnesota DNR records. About 34% of the lake is shallower than 15 feet.
How big is Hattie Lake?
Hattie Lake covers about 587.8 acres in Cass County, Minnesota.
How clear is Hattie Lake?
Summer water clarity on Hattie Lake averages 10.5 feet (Secchi depth) in MPCA monitoring through 2025. Its trophic state is mesotrophic.
Does Hattie Lake have zebra mussels or other invasive species?
Hattie 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.
How is the walleye population on Hattie Lake?
In Minnesota DNR net surveys from 1992 to 2002, walleye numbers on Hattie Lake ran mostly within the typical range for similar lakes. Nets measure how many fish a lake holds, not where they’re biting, so local guides are the best source for current fishing.
Are there lake homes for sale on Hattie Lake?
Homes on Hattie 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 Hattie Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Hattie Lake?
A mid-size lake with room for boating and fishing, about 34% shallow shoreline under 15 feet, and summer clarity around 10.5 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Hattie Lake?
No lake-specific regulation was found for Hattie Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Hattie Lake
Whether you’re buying, selling, or just curious, our team works Cass County lakes every day. Send us a note or call (218) 656-6469.
Sources: Minnesota DNR LakeFinder records, DNR fish surveys (latest 2002), 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.