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Lake Koronis

Paynesville · Union Grove, Minnesota — Stearns County.

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2,943Surface acres
3Public access sites
3.6 miShoreline trails

Surface area: The USGS National Hydrography Dataset outline (NHD Permanent ID 120019638).

Location & fast facts

Where Lake Koronis is in Minnesota

The red circle marks Lake Koronis.

Fast facts

About Lake Koronis

  • Counties: Stearns, Meeker
  • Shore towns: Paynesville, Union Grove
  • Mapped as: Lake or pond (USGS National Hydrography Dataset)
  • Distance: about 74 mi from Minneapolis and 160 mi from Duluth, straight-line (not driving distance)

Towns and counties: U.S. Census Bureau boundaries overlaid on the USGS lake outline.

Fishing in Minnesota

Official Minnesota DNR pages. Rules and fees change; check before you go.

Good for & watch for

Good for

  • Boating. 3 public trailer launches listed (see access)
  • Fishing. Walleye, Northern pike, Largemouth bass and Smallmouth bass
  • Walking. 3.6 mi of trail near the shore (trails)
  • Camping. 9 campgrounds within 15 mi, 1 on the shore (list)

Watch for

  • Non-native/invasive species. Zebra mussel, Curly-leaf pondweed and Starry stonewort recorded. Clean, drain and dry your boat and gear.
  • Boat traffic. A public trailer launch means motorboats share the water; expect more traffic on summer weekends.
  • Cold water. Water stays cold well into late spring and turns cold again in fall. Wear a life jacket when paddling in the shoulder seasons.

Built only from the data on this page: official access lists, OpenStreetMap beaches and trails, campground listings, state and USGS invasive-species records. We don't rate crowds or water quality.

Official lake survey (Minnesota DNR)

132 ftMaximum depth
29 ftAverage depth
2,968Acres (state figure)

Fish species found in Minnesota DNR lake surveys: Bigmouth buffalo, Black bullhead, Black crappie, Bluegill, Bowfin (dogfish), Brown bullhead, Common carp, Golden redhorse, Green sunfish, Hybrid sunfish, Largemouth bass, Northern pike, Pumpkinseed, River redhorse, Rock bass, Shorthead redhorse, Smallmouth bass, Tullibee (cisco), Walleye, White sucker, Yellow bullhead, Yellow perch.

Shallow (littoral) area: 1,176 of 2,968 acres

Source: Minnesota Department of Natural Resources LakeFinder record for Lake Koronis (DOW 73020002), with lake survey reports, depth maps and stocking history. Acreage here can differ slightly from our mapped outline.

Lake map

Lake Koronis shoreline, boat launches & beaches

Sandy Point Park (campground)Lake Koronis Regional Park (campground)Koronis Lake, Co Park Public Water Access Site (Boat launch)1Koronis Lake, Hwy55 Public Water Access Site (Boat launch)2Koronis Lake, Lake Park Public Water Access Site (Boat launch)31 mileN

Numbers on the map match the list at rightbelow.

Boat launchShoreline trail Campground
  1. 1Koronis Lake, Co Park Public Water Access Site
    Boat launch · Paynesville
  2. 2Koronis Lake, Hwy55 Public Water Access Site
    Boat launch · Paynesville
  3. 3Koronis Lake, Lake Park Public Water Access Site
    Boat launch · Paynesville

Shoreline: USGS National Hydrography Dataset (NHD Waterbody, Permanent ID 120019638), public domain. State outline: U.S. Census Bureau TIGERweb. Points: Minnesota DNR public water access sites (Minnesota Geospatial Commons). Dashed trails: © OpenStreetMap contributors (ODbL). Interactive map: Leaflet with © OpenStreetMap contributors. Not for navigation.

Shoreline trails

3.6 miTrail within 100 m of shore
About 25%Of the shoreline
NoLoops the whole lake
East, south and west shoresWhere

OpenStreetMap shows about 3.6 mi of public hiking and walking trail within about 100 m (330 ft) of the Lake Koronis shoreline, mostly along the east, south and west shores.

Trails along the shore

Getting to the trails

No trailhead is mapped for these trails. The closest public access site is Koronis Lake, Hwy55 Public Water Access Site, 350 ft from a shoreline trail (Minnesota DNR water access data).

The dashed brown line on the lake map shows these trails. We include paths, footways and marked trails that OpenStreetMap doesn't mark as private, and leave out roads, sidewalks and snowmobile corridors. Mapped trails can still cross private land or close for the season, and not every trail is mapped, so follow posted signs.

Trails: © OpenStreetMap contributors, available under the Open Database License (ODbL). Map data as of Oct 9, 2026. Trail lengths count only the parts within about 100 m of the USGS NHD lake outline.

Campgrounds near Lake Koronis

We found 9 campgrounds and RV parks within 15 miles of Lake Koronis, 2 of them within 5 miles. 1 is right on the shore. Distances are straight-line from the nearest point on the shoreline, so driving distance is longer.

3 more within 15 miles

All campgrounds & RV parks in Minnesota

Green tent icons on the lake map mark campgrounds near the shore, and the interactive map shows the closest 12. Amenities are listed only where a source records them; call or check the campground's website before you go, since seasons and rates change every year.

Campground data: OpenStreetMap contributors (ODbL). Pulled Oct 12, 2026.

Conditions right now

Air temperature & conditions (nearest NWS station)Loading…
Fetching the latest National Weather Service observation…

Live from the National Weather Service API for the lake's coordinates (45.3350, -94.7028). The nearest station may be several miles away. NWS forecast for Lake Koronis. No live water-temperature sensor is shown because we haven't found a public one for this lake.

Sun, moon & best fishing times

Sun & moon at Lake Koronis

Best fishing times

Major periodMinor periodDaylight

    Based on solunar theory, an estimate. Major periods (about 2 hours) center on when the moon is directly overhead or underfoot; minor periods (about 1 hour) center on moonrise and moonset. The 0–100 activity score rises during those periods and gets a boost near sunrise and sunset and around the new and full moon. Weather, water temperature and pressure often matter more. Sun and moon times are calculated in your browser from the lake's coordinates with standard astronomy formulas, shown in CT (America/Chicago), and accurate to within a few minutes.

    Boat launches & access sites

    3 public access sites listed, 3 with a boat ramp or trailer launch.

    SiteTownOwnerTypeParkingFeeUsesMap
    Koronis Lake, Co Park Public Water Access SitePaynesvilleStearns County, Parks DepartmentTrailer launch · Concrete slab ramp · dock20 trailer—Fishing, Boating
    Restroom
    45.3284, -94.7279
    Koronis Lake, Hwy55 Public Water Access SitePaynesvilleDNR Division of Parks and TrailsTrailer launch · Concrete slab ramp · dock24 trailer—Fishing, Boating
    Restroom
    45.3257, -94.6696
    Koronis Lake, Lake Park Public Water Access SitePaynesvilleCity of PaynesvilleTrailer launch · Concrete slab ramp · dock10 trailer, 30 car—Fishing, Boating45.3487, -94.7014

    Minnesota DNR public water access sites (Minnesota Geospatial Commons)

    Fees, hours and rules change; confirm with the site owner before you go.

    Non-native/invasive species

    Reported on or near Lake Koronis

    Clean, Drain, Dry. Remove plants and mud, drain all water, and dry your boat, trailer and gear before moving to another water.

    USGS Nonindigenous Aquatic Species database

    USGS records matched to this water by location (within about 150 m of the outline) or by the place name in the record. A record shows a sighting was reported; it doesn't prove the species is still there. As of Oct 10, 2026.

    Contact & official info

    Questions about Lake Koronis

    How big is Lake Koronis?

    Lake Koronis covers about 2,943 acres in Paynesville and Union Grove, Minnesota (Stearns County).

    How deep is Lake Koronis?

    The maximum recorded depth is 132 feet and the mean depth is 29 feet, according to the Minnesota DNR LakeFinder.

    What fish are in Lake Koronis?

    Minnesota DNR LakeFinder lists Walleye, Northern pike, Largemouth bass, Smallmouth bass, Black crappie, Bluegill, Yellow perch, Tullibee (cisco), Pumpkinseed and Rock bass and 12 more.

    Is there a public boat launch on Lake Koronis?

    Yes. 3 public trailer launches are listed: Koronis Lake, Hwy55 Public Water Access Site, Koronis Lake, Lake Park Public Water Access Site and Koronis Lake, Co Park Public Water Access Site. Check posted fees and parking rules.

    Are there campgrounds near Lake Koronis?

    Yes. We list 9 campgrounds and RV parks within 15 miles, 2 of them within 5 miles.

    What towns are on Lake Koronis?

    Lake Koronis touches Paynesville and Union Grove in Stearns County and Meeker County, Minnesota.

    Share a tip or fishing report

    Know Lake Koronis? Tell us about the launch, parking, where they're biting or anything a first-time visitor should know. Tips go privately to the LakeRipple editor; nothing is posted automatically. Helpful tips may be featured on this page (we'll use your first name only if you give one).

    Lakes & ponds nearby

    Straight-line distance between lake centers. All Minnesota lakes & ponds · All waters in Paynesville