Thirteen Lake
Cass County, Minnesota, near Cass Lake. DNR lake ID 11048800.
Thirteen Lake is a 554.5-acre lake in Cass County, Minnesota, near Cass Lake. Its deepest point reaches 50 ft, and about 59% of the lake is shallower than 15 feet. Summer water clarity averages 9.2 feet in Minnesota Pollution Control Agency monitoring. It is not on the DNR infested waters list as of September 2026. DNR surveys document walleye, northern pike, largemouth bass, black crappie, bluegill, yellow perch.
Buying or selling on Thirteen 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 | 11048800 |
|---|---|
| County | Cass County, near Cass Lake |
| Surface area | 554.5 acres |
| Maximum depth | 50 ft |
| Share under 15 ft | 59% |
| Water clarity (summer) | 9.2 ft through 2025 (satellite estimate) |
| 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 2025: clarity 9.2 ft.
Fishing on Thirteen Lake
The most recent DNR standard fish survey was in 2014 (12 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 | 5.33 | 3.3 to 8.8 |
| Walleye | trap | 0.11 | 0.2 to 0.8 |
| Northern pike | gill | 4.5 | 2.8 to 9.0 |
| Northern pike | trap | 0.22 | n/a |
| Yellow perch | gill | 12.17 | 7.0 to 46.3 |
| Black crappie | gill | 0.17 | 0.4 to 2.7 |
| Bluegill | gill | 10.67 | n/a |
| Bluegill | trap | 12.11 | 4.4 to 49.0 |
| Largemouth bass | gill | 20.0 | 0.3 to 1.4 |
| Largemouth bass | trap | 1.44 | 0.3 to 1.3 |
| Pumpkinseed | gill | 8.5 | n/a |
| Pumpkinseed | trap | 2.78 | 1.8 to 7.8 |
| Hybrid sunfish | gill | 1.5 | n/a |
Walleye catch was within the typical range for similar lakes in that survey.
Largest fish measured in recent DNR samples: Northern pike 17.0 in (2015), Walleye 25.0 in (2015), Largemouth bass 16.0 in (2021).
Game and panfish documented since 2005: Walleye, Northern pike, Largemouth bass, Black crappie, Bluegill, Yellow perch, Pumpkinseed, Hybrid sunfish, White sucker, Brown bullhead.
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
- Thirteen Lake: 1 concrete slab launch ramp, 6 trailer spaces. 8.5 miles south of city of Cass Lake, 1 mile off County Road 144 on west shore of Thirteen Lake. Directions
DNR water access records (2023). Confirm current conditions with the DNR.
Nearby lakes
- Little Twin Lake 0.7 mi, Cass County
- Twin Lake 1.6 mi, Cass County
- Moss Lake 2.1 mi, Cass County
- Welch Lake 2.5 mi, Cass County
- Portage Lake 2.5 mi, Cass County
- Crooked Lake 3.5 mi, Cass County
- Pike Bay 4.3 mi, Cass County
- Steamboat Lake 5.5 mi, Cass County
Questions about Thirteen Lake
How deep is Thirteen Lake?
Thirteen Lake reaches a maximum depth of 50 ft according to Minnesota DNR records. About 59% of the lake is shallower than 15 feet.
How big is Thirteen Lake?
Thirteen Lake covers about 554.5 acres in Cass County, Minnesota.
How clear is Thirteen Lake?
Summer water clarity on Thirteen Lake averages 9.2 feet (Secchi depth) in MPCA monitoring through 2025.
Does Thirteen Lake have zebra mussels or other invasive species?
Thirteen 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.
What fish are in Thirteen Lake?
Minnesota DNR surveys document walleye, northern pike, largemouth bass, black crappie, bluegill, yellow perch, pumpkinseed, hybrid sunfish, white sucker, brown bullhead in Thirteen Lake. The most recent standard survey was in 2014.
Where is the public boat access on Thirteen Lake?
Thirteen Lake has 1 public water access site on DNR record: Thirteen Lake.
How is the walleye population on Thirteen Lake?
In Minnesota DNR net surveys from 2004 to 2014, walleye numbers on Thirteen 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 Thirteen Lake?
Homes on Thirteen 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 Thirteen Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Thirteen Lake?
A mid-size lake with room for boating and fishing, about 59% shallow shoreline under 15 feet, and summer clarity around 9.2 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Thirteen Lake?
No lake-specific regulation was found for Thirteen Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Thirteen 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 2014), 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.