Minnesota Lake Depths
NESW

Lake Pepin

Goodhue County, Minnesota · MN DNR bathymetric survey
50ft Max
depth
25,326 acres 9 contours Public access
Paddling Index34Modestcarry-in access
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Depth scale

The lake

Survey readout

Lake Pepin is mapped to a depth of 50 ft on the Minnesota DNR survey and covers about 25,326 acres in Goodhue County, Minnesota. Depths come from the Minnesota DNR survey of 1959.

Measured from the Minnesota DNR lake bathymetric contour survey.

Deepest mapped contour
50 ft
Survey year
1959
Surface area
25,326 acres
Shoreline
71.79 mi · irregular
Aquatic vegetation
2% of surface · NDVI estimate
Public access
Trailer Launch · Mississippi River, Hok-Si-La Park Public Water Access Site · Minnesota DNR site · 8 more
Additional depth details9 contours
Contour depths
0–50 ft
Recorded point soundings
50 ft, 20 ft, 20 ft, 20 ft
Compare with another lake
Location
U.S. Lock & Dam #3 LakeLake Pepin (this lake)
Goodhue County, Minnesota · all 2 lakes · tap a dot for that lake
Chart data

Provenance

Sources: MN DNR Lake Bathymetric Contours, USGS 3DEP, USDA NAIP (public domain), OpenStreetMap (ODbL).

⚠ Not for navigation

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Map details & sources4 sources

All layers registered to one bounding box; positions in WGS 84.

Survey-derived depth contours drape over USGS 3DEP elevation, with a USDA NAIP aerial basemap and OpenStreetMap shoreline. Color shows surveyed depth; dark lines are the survey's own isobaths.

Coordinates
44.49719, -92.29984
MN DNR lake ID
25000100
Basemap
USDA NAIP · public domain
Model size
2.4 MB

Paddling

Paddling Index methodology v1.0 · calculated 2026-09-25
34 / 100ModestData confidence: High

Lake Pepin has a mixed natural and developed setting, long open-water fetch, substantial nearby higher-volume roads.

Why this score?5 components

Included in the index

ComponentRatingPoints of weightMeasurement
Natural settingMixed13.8 of 3550% natural land cover within 150 m of shore (21% forest, 28% wetland; 24% developed)
Geometric wind exposureModest1.5 of 29mean fetch 9,788 m · 0% of sampled water within 500 m of shelter · long open-water fetch
Motor & speed rulesNot modeled—Minnesota’s lake-by-lake motor, speed and no-wake rules are mostly county and city ordinances, not map data, so they are not part of the Minnesota index. Check local signage and ordinances before going out.
Public accessExcellent17.6 of 189 DNR public access sites · carry-in or canoe launch · boat ramp · fishing pier
Road isolationModest0.9 of 18substantial nearby higher-volume roads · 88 MnDOT-classified segments within 1.2 km, peak 7,094 vehicles/day

Additional paddling considerations

These describe the lake but are not part of the v1 Paddling Index and do not change the number above.

Wake sensitivity
Low — wide enough that wakes disperse over most of the lake
Aquatic vegetation
Low — approximately 2% mapped coverage · NAIP aerial imagery (NDVI)
Observed motorized activity
Unknown — No lake-level measurement of boat traffic is available. Legal permission to operate motors is not evidence of use.
Wildlife habitat potential
Moderate — 21% forest and 28% wetland cover within 150 m of shore
State water trail
On a state water trail — Part of a designated Minnesota State Water Trail: Mississippi River. · MN DNR State Water Trails
How this index is calculated. The Paddling Index is a relative composite derived from lake geometry and public land-cover, access and traffic-count data. It is not a user review, a safety rating, or a prediction of an individual outing. Differences of a few points should not be treated as meaningful — an 84 and an 82 are broadly comparable. Components and weights for Minnesota lakes: natural setting 35%, geometric wind exposure 29%, public access 18%, road isolation 18%. Motor, speed and no-wake rules are not modeled for Minnesota, and traffic counts cover state, county and some city roads but not township roads. Where a component has no data the remaining weights are renormalized and the confidence rating is lowered; below Medium confidence no number is shown. Minnesota scores are relative to other Minnesota lakes and are not directly comparable with Paddling Index scores on our sister sites, which use different data sources, some with a watercraft-rules component. Sources: MN DNR lake bathymetry outline, USGS/MRLC NLCD Land Cover (2021), MN DNR Water Access Sites and Fishing Piers & Shore Fishing Sites (2026-09) and MnDOT Annual Average Daily Traffic (counts 2014–2025). Conditions change quickly — check current weather and local conditions before going out.

Fish you might catch

from DNR surveys

41 species with recent evidence in this lake — sized relative to each other. Illustrations are AI-generated representative adults in everyday colors, not photographs (provenance).

Lake Sturgeon
Flathead Catfish
Longnose Gar
Common Carp
Bigmouth Buffalo
Shortnose Gar
Smallmouth Buffalo
Silver Redhorse
Freshwater Drum
Golden Redhorse
White Sucker
Quillback
Sauger
Shorthead Redhorse
Highfin Carpsucker
Chestnut Lamprey
Gizzard Shad
Mooneye
White Bass
Brook Silverside
Logperch
Trout-Perch
Emerald Shiner
Shiner
Spotfin Shiner
Spottail Shiner
Tadpole Madtom
Iowa Darter
Johnny Darter
Mimic Shiner
Compiled from Minnesota DNR fishery surveys. Silhouettes are stylized and scaled to typical adult sizes relative to one another. Presence is not a promise — fishing isn’t a sure thing.

Fishery

surveyed 2024
29,230Fish sampled
45Species

Gamefish Sauger 912 · Smallmouth Bass 385 · Walleye 356 · Largemouth Bass 126

Panfish Bluegill 728 · Yellow Perch 464 · Black Crappie 69

All survey species41 species

Gamefish

Sauger912 caught · to 22″
Smallmouth Bass385 caught · to 20″
Walleye356 caught · to 28″
Largemouth Bass126 caught · to 19″
Channel Catfish119 caught · to 28″
Northern Pike33 caught · to 39″
Flathead Catfish8 caught · to 24″
Bowfin1 caught · to 24″

Panfish

Bluegill728 caught · to 8″
Yellow Perch464 caught · to 13″
Black Crappie69 caught · to 11″
White Crappie12 caught · to 8″
Rock Bass3 caught · to 9″

Forage & nongame

Gizzard Shad21,714 caught · to 18″
Freshwater Drum2,787 caught · to 26″
Emerald Shiner338 caught · to 3″
Trout-Perch266 caught · to 3″
Spottail Shiner247 caught · to 3″
White Bass122 caught · to 16″
Shorthead Redhorse81 caught · to 18″
Common Carp76 caught · to 29″
Shiner62 caught · to 2″
Spotfin Shiner37 caught · to 3″
Mooneye36 caught · to 14″
Brook Silverside33 caught · to 3″
Silver Redhorse26 caught · to 23″
Smallmouth Buffalo24 caught · to 31″
Logperch18 caught · to 3″
Quillback17 caught · to 20″
Johnny Darter14 caught · to 2″
Lake Sturgeon13 caught · to 42″
White Sucker11 caught · to 19″
Longnose Gar10 caught · to 31″
Bigmouth Buffalo9 caught · to 13″
Golden Redhorse4 caught · to 17″
Iowa Darter3 caught · to 2″
Chestnut Lamprey2 caught · to 9″
Highfin Carpsucker2 caught · to 15″
Mimic Shiner2 caught · to 1″
Tadpole Madtom2 caught · to 2″
Shortnose Gar1 caught · to 14″
Length is the largest fish netted in the survey, not an angler record. Source: Minnesota DNR lake survey (LakeFinder).

Infested waters listing

3 confirmed, 1 via connection

Mussels & snails

Plants & algae

Fish

  • Bighead CarpConfirmed in this water in 2003 (listed 2012).
  • Silver CarpListed in 2012 because this water is connected to other Mississippi River pools. The species has not necessarily been found in this lake.
What does the infested waters list mean?

The Minnesota DNR lists a lake, river, pond or wetland as infested when it contains an aquatic invasive species that could spread to other waters, or when it is connected to a water where one is present. Activities such as bait harvest and water use are managed differently on infested waters. Check the current list before moving water, bait or equipment.

Source: Minnesota Department of Natural Resources. List of Infested Waters, September 9, 2026. https://www.dnr.state.mn.us/invasives/ais/infested.html

Quick answers

Lake Pepin — common questions

How deep is Lake Pepin?

The deepest contour on the Minnesota DNR bathymetric survey of Lake Pepin is 50 ft. That is the deepest depth the historical survey map records, which may differ from the deepest point of the lake itself.

How big is Lake Pepin?

Lake Pepin covers about 25,326 acres in Goodhue County, Minnesota.

What fish are in Lake Pepin?

Species with survey, catch or recent-stocking evidence include channel catfish, flathead catfish, lake sturgeon, largemouth bass, northern pike, smallmouth bass. The page lists all 41 species and the evidence behind each.

Is there public access to Lake Pepin?

Yes. The Minnesota DNR lists 9 public access sites on Lake Pepin: Mississippi River, Hok-Si-La Park Public Water Access Site (boat ramp); Mississippi River, Maple Springs Public Water Access Site (boat ramp); Mississippi River, Ohuta Municipal Park Public Water Access Site (boat ramp); Mississippi River, Roschen Park Public Water Access Site (boat ramp) and 5 more.

More lakes in Goodhue County