Oak Lake
Oak Lake in Lincoln County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 71 acres.
- Area
- 71 acres
Next lake in Lincoln County
Swipe left or right on this bar to open the next or previous lake.
Why Oak Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Oak Lake, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Oak Lake is a 71-acre lake in Lincoln County, Minnesota.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Oak Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Oak Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Oak Lake
Compare lakeside cabins, hotels, and vacation rentals near Oak Lake in Lincoln County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Oak Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Minnesota’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 71 acres |
No bathymetric survey has been published for Oak Lake, so its depth is not documented here.
Recreation & Access
- Oak LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Oak Lake
Nearby Lakes in Lincoln County
Frequently asked questions about Oak Lake
Where is Oak Lake?
- Oak Lake is a lake in Lincoln County, Minnesota. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Oak Lake?
- Oak Lake in Lincoln County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 71 acres.
Is Oak Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Oak Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Oak Lake?
- Oak Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Oak Lake.
Explore Oak Lake across LakeQuality
Fish species and top-graded lakes across Minnesota
Fish species and best lakes in Lincoln County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its grade
Minnesota's cleanest and most-polluted lakes, ranked
More Minnesota Lake Rankings
State Parks Near Oak Lake
Other Lakes in Minnesota
Where this data comes from
Measurements for Oak Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory