Onamia Lake
Mille Lacs County, Minnesota, near Onamia. DNR lake ID 48000900.
Onamia Lake is a 1,044-acre lake in Mille Lacs County, Minnesota, near Onamia. Its deepest point reaches 10 ft, and about 100% of the lake is shallower than 15 feet. Summer water clarity averages 4.4 feet in Minnesota Pollution Control Agency monitoring. The DNR lists it for zebra mussel.
Buying or selling on Onamia 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 Onamia LakeWhat’s my Onamia Lake property worth?Call (218) 656-6469
Quick facts
| DNR lake ID | 48000900 |
|---|---|
| County | Mille Lacs County, near Onamia |
| Surface area | 1,044 acres |
| Maximum depth | 10 ft |
| Share under 15 ft | 100% |
| Water clarity (summer) | 4.4 ft through 2025 (satellite estimate) |
| Invasive species | zebra mussel |
| Public water accesses | 0 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2025: clarity 4.4 ft.
Fishing on Onamia Lake
The most recent DNR standard fish survey was in 1989 (37 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 | 0.67 | 3.2 to 15.3 |
| Northern pike | gill | 3.67 | 1.2 to 7.8 |
| Northern pike | trap | 1.0 | n/a |
| Yellow perch | gill | 4.67 | 3.0 to 22.5 |
Walleye catch was below the typical range for similar lakes in that survey.
Fishing regulations
- Sunfish daily limit 5. (DNR Quality Sunfish Initiative)
Regulations change. Confirm with the DNR before fishing.
Invasive species
On the Minnesota DNR infested waters list for: zebra mussel (listed 2007).
Public boat access
No public water access on DNR record.
Nearby lakes
- Shakopee Lake 2.8 mi, Mille Lacs County
- Black Bass Lake 3.4 mi, Mille Lacs County
- Ogechie Lake 6.3 mi, Mille Lacs County
- Hannah Lake 10.4 mi, Morrison County
- Peavy Lake 10.5 mi, Morrison County
- Whitefish Lake 10.8 mi, Crow Wing County
- Mille Lacs Lake 10.8 mi, Mille Lacs County
- Long Lake 11.4 mi, Morrison County
Questions about Onamia Lake
How deep is Onamia Lake?
Onamia Lake reaches a maximum depth of 10 ft according to Minnesota DNR records. About 100% of the lake is shallower than 15 feet.
How big is Onamia Lake?
Onamia Lake covers about 1,044 acres in Mille Lacs County, Minnesota.
How clear is Onamia Lake?
Summer water clarity on Onamia Lake averages 4.4 feet (Secchi depth) in MPCA monitoring through 2025.
Does Onamia Lake have zebra mussels or other invasive species?
The Minnesota DNR infested waters list includes Onamia Lake for zebra mussel.
Are there lake homes for sale on Onamia Lake?
Homes on Onamia 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 Onamia Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Onamia Lake?
A mid-size lake with room for boating and fishing, about 100% shallow shoreline under 15 feet, and summer clarity around 4.4 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Onamia Lake?
Yes. Sunfish daily limit 5.
Ask us about Onamia Lake
Whether you’re buying, selling, or just curious, our team works Mille Lacs County lakes every day. Send us a note or call (218) 656-6469.
Sources: Minnesota DNR LakeFinder records, DNR fish surveys (latest 1989), 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.