Beaver Dam Lake
Waukesha County, Wisconsin
About Beaver Dam Lake
Beaver Dam Lake is a scenic Waukesha County lake worth knowing about, a intimate 36-acre lake reaching 6 feet at its deepest. Access is limited, which keeps boat traffic low — a plus for solitude seekers. Note that invasive species (Purple Loosestrife) have been documented here — clean your boat before leaving.
Bottom composition: 20% sand, 0% gravel, 0% rock, 80% muck
Type: lake · Hydrology: SEEPAGE
Lake Location
42.92450° N, 88.53540° W
WBIC 774300 · Wisconsin DNRLocal's Guide
Fishing
Species-specific tips above. Wisconsin fishing license required for ages 16+. See current season regulations below.
View fishing regulations ↓Swimming
Beaver Dam Lake has limited visibility and a gravel and sand bottom, making it better suited for boating and fishing than swimming. The 36-acre lake offers a quieter, more intimate swimming experience.
Nearby Dining
Local dining recommendations for Beaver Dam Lake are coming soon. Know a great spot near Beaver Dam Lake? Share it at staynorthern.com/contact. Looking for restaurants near Waukesha County lakes? Visit staynorthern.com/eats for our full northwoods dining guide.
Insider Tips
Beaver Dam Lake is one of Waukesha County's lesser-known gems — the kind of place locals return to year after year. Early mornings before 9am offer the calmest water and best fishing before boat traffic picks up. If you're visiting for the first time, check the DNR boat landing locations before you arrive — some are well-marked, others take a local to find. Know something about Beaver Dam Lake that visitors should? Share a tip at staynorthern.com/contact — we add the best ones to this page.
Lake Conditions
Water Clarity
—
No data
Trophic Status
—
No data
Invasive Weeds
Present
Purple Loosestrife
Seasonal Notes
See below
Ice-out dates, peak fishing windows
Ice out arrives in late March to early April on southern Wisconsin lakes. Bass and panfish fishing is excellent from early May onward. Swimming season runs from early June through September. Fall color peaks in mid-October. Ice fishing is possible in most winters but season length varies — check conditions before heading out.
Condition data sourced from Wisconsin DNR surveys. Real-time weed and clarity reports coming soon.
Invasive Species Present
Purple Loosestrife has been documented in Beaver Dam Lake. Clean, drain, and dry all watercraft and equipment before leaving.
Report sightings to the Wisconsin DNR invasive species hotline.Frequently Asked Questions
Can you boat on Beaver Dam Lake?
Beaver Dam Lake does not currently have a public boat landing listed in the Wisconsin DNR database. Shore fishing or kayak/canoe access may still be available — check local access points.
How big is Beaver Dam Lake?
Beaver Dam Lake has 36 acres in surface area, a maximum depth of 6 feet.
What is the bottom of Beaver Dam Lake like?
The lake bottom is composed of 20% sand, 0% gravel, 0% rock, 80% muck. Sandy and gravel bottoms typically support good swimming and healthy fish habitat.
Are there invasive species in Beaver Dam Lake?
Yes — Purple Loosestrife has been documented in Beaver Dam Lake. Please clean, drain, and dry your watercraft and all equipment before leaving any Wisconsin water body to prevent the spread of invasive species.
Where is Beaver Dam Lake located?
Beaver Dam Lake is located in Waukesha County, Wisconsin. GPS coordinates: 42.9245° N, 88.5354° W.
Are there vacation rentals on Beaver Dam Lake?
Stay Northern is building the most complete rental directory for Waukesha County lakes. Check our Beaver Dam Lake vacation rentals listing — if none are available yet, check back soon or browse nearby Waukesha County lake rentals.
Fishing Regulations
Current season regulations for Beaver Dam Lake
Regulation data is not available for this lake. Check with the Wisconsin DNR for current season rules before fishing.
Regulations sourced from Wisconsin DNR fisheries data. Always verify current regulations before fishing.
Lake Details
- WBIC
- 774300
- County
- Waukesha County
- Surface Area
- 36 acres
- Max Depth
- 6 ft
- Bottom
- 20% sand, 0% gravel, 0% rock, 80% muck
- Lake Type
- lake
- Coordinates
- 42.9245, -88.5354
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Beaver Dam Lake? Let us know.
Lake data sourced from the Wisconsin DNR. Last updated 4/30/2026.