Surprise Lake
Cass County, Minnesota, near Hackensack. DNR lake ID 11037500.
Surprise Lake is a 25-acre lake in Cass County, Minnesota, near Hackensack. Its deepest point reaches 72 ft. Summer water clarity averages 11.1 feet in Minnesota Pollution Control Agency monitoring. It is not on the DNR infested waters list as of September 2026.
Buying or selling on Surprise 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.
Tell us about your dream home on Surprise LakeWhat’s my Surprise Lake property worth?Call (218) 656-6469
Quick facts
| DNR lake ID | 11037500 |
|---|---|
| County | Cass County, near Hackensack |
| Surface area | 25 acres |
| Maximum depth | 72 ft |
| Share under 15 ft | Not surveyed |
| Water clarity (summer) | 11.1 ft through 2025 (satellite estimate) |
| 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 11.1 ft.
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
- Larson Lake 0.9 mi, Cass County
- Little Webb Lake 1.1 mi, Cass County
- Webb Lake 1.2 mi, Cass County
- Long Lake 2.2 mi, Cass County
- Cub Lake 2.3 mi, Cass County
- Stony Lake 2.4 mi, Cass County
- Boss Lake 2.5 mi, Cass County
- Fish Lake 2.5 mi, Cass County
Questions about Surprise Lake
How deep is Surprise Lake?
Surprise Lake reaches a maximum depth of 72 ft according to Minnesota DNR records.
How big is Surprise Lake?
Surprise Lake covers about 25 acres in Cass County, Minnesota.
How clear is Surprise Lake?
Summer water clarity on Surprise Lake averages 11.1 feet (Secchi depth) in MPCA monitoring through 2025.
Does Surprise Lake have zebra mussels or other invasive species?
Surprise 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.
Are there lake homes for sale on Surprise Lake?
Homes on Surprise 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 Surprise Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Surprise Lake?
Small, quiet water suited to paddling and fishing, and summer clarity around 11.1 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Surprise Lake?
No lake-specific regulation was found for Surprise Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Surprise 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 not on record), 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.