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Minnesota›Deepest lakes›Blue Earth County

MN · ranked by public data

The 10 Deepest Lakes in Blue Earth County, Minnesota

10 Blue Earth County lakes are at least 50 NHD-mapped acres with a DNR-documented depth, out of 47 documented lakes in the county.

  1. 159 ft
    1,339 acres

    Blue Earth County, MN

    Madison Lake

    limitedDepth map
    44.19, -93.791,339 acres | 59 ft max0 public access pointsSpecies pending

    59 ft maximum depth · 1,339 acres

  2. 258 ft
    354 acres

    Blue Earth County, MN

    Ballantyne Lake

    limitedDepth map
    44.21, -93.84354 acres | 58 ft max0 public access pointsSpecies pending

    58 ft maximum depth · 354 acres

  3. 328 ft
    86 acres

    Blue Earth County, MN

    George Lake

    limitedDepth map
    44.23, -93.8786 acres | 28 ft max0 public access pointsSpecies pending

    28 ft maximum depth · 86 acres

  4. 425 ft
    278 acres

    Blue Earth County, MN

    Duck Lake

    limitedDepth map
    44.22, -93.82278 acres | 25 ft max0 public access pointsSpecies pending

    25 ft maximum depth · 278 acres

  5. 510 ft
    468 acres

    Blue Earth County, MN

    Eagle Lake

    limitedDepth map
    44.20, -93.90468 acres | 10 ft max0 public access pointsSpecies pending

    10 ft maximum depth · 468 acres

  6. 69 ft
    1,289 acres

    Blue Earth County, MN

    Lura Lake

    limitedDepth map
    43.87, -94.021,289 acres | 9 ft max0 public access pointsSpecies pending

    9 ft maximum depth · 1,289 acres

  7. 78 ft
    368 acres

    Blue Earth County, MN

    Lake Crystal

    limitedDepth map
    44.11, -94.20368 acres | 8 ft max0 public access pointsSpecies pending

    8 ft maximum depth · 368 acres

  8. 88 ft
    109 acres

    Blue Earth County, MN

    Ida Lake

    limitedDepth map
    43.92, -94.14109 acres | 8 ft max0 public access pointsSpecies pending

    8 ft maximum depth · 109 acres

  9. 97 ft
    781 acres

    Blue Earth County, MN

    Loon Lake

    limitedDepth map
    44.10, -94.18781 acres | 7 ft max0 public access pointsSpecies pending

    7 ft maximum depth · 781 acres

  10. 107 ft
    232 acres

    Blue Earth County, MN

    Mills Lake

    limitedDepth map
    44.08, -94.15232 acres | 7 ft max0 public access pointsSpecies pending

    7 ft maximum depth · 232 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

Blue Earth County lake records

What is the deepest lake in Blue Earth County?

Madison Lake — Madison Lake in Blue Earth County has the deepest documented maximum depth of any ranked Blue Earth County lake, at 59 feet in Minnesota DNR records.

Deepest lakes statewideBiggest lakes in Blue Earth CountyAll Blue Earth 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.