US lakes & pondsUS lakes & pondsSurface area: The USGS National Hydrography Dataset outline (NHD Permanent ID 121623897).
The red circle marks Lake Mary.
Towns and counties: U.S. Census Bureau boundaries overlaid on the USGS lake outline.
Official Wisconsin DNR pages. Rules and fees change; check before you go.
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.
Fish species listed by the Wisconsin DNR (with DNR abundance rating): Panfish (common), Largemouth Bass (common), Walleye (common), Northern Pike (present).
Average depth not published.
DNR lake class: Complex - Warm - Dark
Source: Wisconsin Department of Natural Resources Lake Page for Lake Mary (WBIC 743000); maximum depth and acreage from the DNR lake classification data. Acreage here can differ slightly from our mapped outline.
Numbers on the map match the list at rightbelow.
Shoreline: USGS National Hydrography Dataset (NHD Waterbody, Permanent ID 121623897), public domain. State outline: U.S. Census Bureau TIGERweb. Points: Wisconsin DNR boat access sites. Interactive map: Leaflet with © OpenStreetMap contributors. Not for navigation.
We found 10 campgrounds and RV parks within 15 miles of Lake Mary, 5 of them within 5 miles. Distances are straight-line from the nearest point on the shoreline, so driving distance is longer.
Tent sites
All campgrounds & RV parks in Wisconsin
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.
Live from the National Weather Service API for the lake's coordinates (42.5230, -88.2577). The nearest station may be several miles away. NWS forecast for Lake Mary. No live water-temperature sensor is shown because we haven't found a public one for this lake.
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.
1 public access site listed, 1 with a boat ramp or trailer launch.
| Site | Town | Owner | Type | Parking | Fee | Uses | Map |
|---|---|---|---|---|---|---|---|
| Lance Park Boat Ramp | Twin Lakes | Village of Twin Lakes | Boat ramp · Concrete Panels ramp | — | — | Boating Handicap accessible | 42.5293, -88.2536 |
Wisconsin DNR boat access sites
Fees, hours and rules change; confirm with the site owner before you go.
On OpenStreetMap: 2 beaches and swimming spots on the shore of Lake Mary not marked private, residents-only or members-only.
| Beach | Type | Access | Directions |
|---|---|---|---|
| Twin Lakes Park Beach | Beach | Access not tagged; check posted rules | Get directions |
| twin lakes park beach | Beach | Access not tagged; check posted rules | Get directions |
Beaches: © OpenStreetMap contributors (ODbL), within about 150 m (500 ft) of the lake outline. A mapped beach is not a guarantee that swimming is allowed, supervised or safe; some town beaches need a resident sticker even when the map doesn't say so. Check posted rules and water-quality advisories before you swim.
Reported on or near Lake Mary
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.
Lake Mary covers about 327 acres in Twin Lakes, Wisconsin (Kenosha County).
The maximum recorded depth is 33 feet, according to the Wisconsin DNR Lake Pages.
Wisconsin DNR Lake Pages lists Walleye, Northern Pike, Largemouth Bass and Panfish.
Yes. 1 public trailer launch is listed: Lance Park Boat Ramp. Check posted fees and parking rules.
OpenStreetMap shows 2 public beach or swimming spots on the shore. None of our sources lists a lifeguard, so swim at your own risk and follow posted rules.
Yes. We list 10 campgrounds and RV parks within 15 miles, 5 of them within 5 miles.
Lake Mary touches Twin Lakes in Kenosha County, Wisconsin.
Know Lake Mary? 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).
Straight-line distance between lake centers. All Wisconsin lakes & ponds · All waters in Twin Lakes