US lakes & pondsUS lakes & pondsSurface area: The USGS National Hydrography Dataset outline (NHD Permanent ID 143249413).
The red circle marks Upper Nemahbin Lake.
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), Northern Pike (common), Smallmouth Bass (present), Walleye (present).
Maximum depth and Average depth not published.
DNR lake class: Complex - Two Story
Source: Wisconsin Department of Natural Resources Lake Page for Upper Nemahbin Lake (WBIC 827100); maximum depth and acreage from the DNR lake classification data. Acreage here can differ slightly from our mapped outline.
No public access sites are listed for this water in the Wisconsin DNR boat access sites data.
Shoreline: USGS National Hydrography Dataset (NHD Waterbody, Permanent ID 143249413), public domain. State outline: U.S. Census Bureau TIGERweb. Points: Wisconsin DNR boat access sites. Dashed trails: © OpenStreetMap contributors (ODbL). Interactive map: Leaflet with © OpenStreetMap contributors. Not for navigation.
OpenStreetMap shows about 0.3 mi of public hiking and walking trail within about 100 m (330 ft) of the Upper Nemahbin Lake shoreline, mostly along the south shore.
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.
We found 10 campgrounds and RV parks within 15 miles of Upper Nemahbin Lake, 1 of them within 5 miles. Distances are straight-line from the nearest point on the shoreline, so driving distance is longer.
Drinking water
RVs welcome · Tent sites
RVs welcome · Tent sites · Showers · Drinking water
Showers
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 (43.0667, -88.4308). The nearest station may be several miles away. NWS forecast for Upper Nemahbin Lake. 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.
Reported on or near Upper Nemahbin Lake
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.
Upper Nemahbin Lake covers about 277 acres in Summit, Wisconsin (Waukesha County).
Wisconsin DNR Lake Pages lists Walleye, Northern Pike, Largemouth Bass, Smallmouth Bass and Panfish.
Yes. We list 10 campgrounds and RV parks within 15 miles, 1 of them within 5 miles.
Upper Nemahbin Lake touches Summit in Waukesha County, Wisconsin.
Know Upper Nemahbin Lake? 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 Summit