MN · ranked by public data

The 8 Deepest Lakes in Polk County, Minnesota

8 Polk County lakes are at least 50 NHD-mapped acres with a DNR-documented depth, out of 134 documented lakes in the county.

183 ft
792 acres
Polk County, MN
Union Lake
limitedDepth map
47.60, -96.06792 acres | 83 ft max0 public access pointsSpecies pending
83 ft maximum depth · 792 acres
260 ft
100 acres
Polk County, MN
Hill River Lake
limitedDepth map
47.68, -95.81100 acres | 60 ft max0 public access pointsSpecies pending
60 ft maximum depth · 100 acres
327 ft
310 acres
Polk County, MN
Lake Sarah
limitedDepth map
47.61, -96.04310 acres | 27 ft max0 public access pointsSpecies pending
27 ft maximum depth · 310 acres
419 ft
51 acres
Polk County, MN
Store Lake
limitedDepth map
47.72, -95.7651 acres | 19 ft max0 public access pointsSpecies pending
19 ft maximum depth · 51 acres
518 ft
237 acres
Polk County, MN
Whitefish Lake
limitedDepth map
47.59, -95.65237 acres | 18 ft max0 public access pointsSpecies pending
18 ft maximum depth · 237 acres
615 ft
78 acres
Polk County, MN
Cross Lake
limitedDepth map
47.63, -95.6378 acres | 15 ft max0 public access pointsSpecies pending
15 ft maximum depth · 78 acres
712 ft
526 acres
Polk County, MN
Turtle Lake
limitedDepth map
47.61, -95.67526 acres | 12 ft max0 public access pointsSpecies pending
12 ft maximum depth · 526 acres
89 ft
226 acres
Polk County, MN
Cameron Lake
limitedDepth map
47.67, -96.02226 acres | 9 ft max0 public access pointsSpecies pending
9 ft maximum depth · 226 acres

Methodology

How this list is built

Ranked by the official maximum depth in Minnesota DNR LakeFinder records; where none is published, the deepest mapped contour from MN DNR survey bathymetry stands in (contours can slightly understate depth, never overstate it).
Only lakes with published Minnesota DNR survey bathymetry on LakeList can rank (about 1,500 lakes). Deep border waters without a published DNR depth record — Saganaga Lake among them — are not listed rather than guessed at.
Lakes under 50 acres — or without a confidently matched USGS NHD polygon for acreage — are excluded from rankings.
Public access inventories are not yet tracked for Minnesota here, so access is never shown or ranked.

FAQ

Polk County lake records

What is the deepest lake in Polk County?

Union Lake — Union Lake in Polk County has the deepest documented maximum depth of any ranked Polk County lake, at 83 feet in Minnesota DNR records.

Deepest lakes statewide Biggest lakes in Polk County All Polk County lakes

Source data: Minnesota DNR LakeFinder records and MN DNR survey bathymetry, with acreage from USGS National Hydrography Dataset polygons, as aggregated by LakeList.Lake outlines are shoreline shapes from LakeList and the USGS National Hydrography Dataset; they illustrate a lake's form and are not depth or navigation charts.

MN · ranked by public data

The 8 Deepest Lakes in Polk County, Minnesota

8 Polk County lakes are at least 50 NHD-mapped acres with a DNR-documented depth, out of 134 documented lakes in the county.

183 ft
792 acres
Polk County, MN
Union Lake
limitedDepth map
47.60, -96.06792 acres | 83 ft max0 public access pointsSpecies pending
83 ft maximum depth · 792 acres
260 ft
100 acres
Polk County, MN
Hill River Lake
limitedDepth map
47.68, -95.81100 acres | 60 ft max0 public access pointsSpecies pending
60 ft maximum depth · 100 acres
327 ft
310 acres
Polk County, MN
Lake Sarah
limitedDepth map
47.61, -96.04310 acres | 27 ft max0 public access pointsSpecies pending
27 ft maximum depth · 310 acres
419 ft
51 acres
Polk County, MN
Store Lake
limitedDepth map
47.72, -95.7651 acres | 19 ft max0 public access pointsSpecies pending
19 ft maximum depth · 51 acres
518 ft
237 acres
Polk County, MN
Whitefish Lake
limitedDepth map
47.59, -95.65237 acres | 18 ft max0 public access pointsSpecies pending
18 ft maximum depth · 237 acres
615 ft
78 acres
Polk County, MN
Cross Lake
limitedDepth map
47.63, -95.6378 acres | 15 ft max0 public access pointsSpecies pending
15 ft maximum depth · 78 acres
712 ft
526 acres
Polk County, MN
Turtle Lake
limitedDepth map
47.61, -95.67526 acres | 12 ft max0 public access pointsSpecies pending
12 ft maximum depth · 526 acres
89 ft
226 acres
Polk County, MN
Cameron Lake
limitedDepth map
47.67, -96.02226 acres | 9 ft max0 public access pointsSpecies pending
9 ft maximum depth · 226 acres

Methodology

How this list is built

Ranked by the official maximum depth in Minnesota DNR LakeFinder records; where none is published, the deepest mapped contour from MN DNR survey bathymetry stands in (contours can slightly understate depth, never overstate it).
Only lakes with published Minnesota DNR survey bathymetry on LakeList can rank (about 1,500 lakes). Deep border waters without a published DNR depth record — Saganaga Lake among them — are not listed rather than guessed at.
Lakes under 50 acres — or without a confidently matched USGS NHD polygon for acreage — are excluded from rankings.
Public access inventories are not yet tracked for Minnesota here, so access is never shown or ranked.

FAQ

Polk County lake records

What is the deepest lake in Polk County?

Union Lake — Union Lake in Polk County has the deepest documented maximum depth of any ranked Polk County lake, at 83 feet in Minnesota DNR records.

Deepest lakes statewide Biggest lakes in Polk County All Polk County lakes

The 8 Deepest Lakes in Polk County, Minnesota

Union Lake

Hill River Lake

Lake Sarah

Store Lake

Whitefish Lake

Cross Lake

Turtle Lake

Cameron Lake

How this list is built

Polk County lake records

What is the deepest lake in Polk County?

The 8 Deepest Lakes in Polk County, Minnesota

Union Lake

Hill River Lake

Lake Sarah

Store Lake

Whitefish Lake

Cross Lake

Turtle Lake

Cameron Lake

How this list is built

Polk County lake records

What is the deepest lake in Polk County?