Tierney Lake
Waukesha County, Wisconsin
About Tierney Lake
Tierney Lake is a consistent bass fishery tucked into Waukesha County — the kind of lake that rewards anglers who know it, a intimate 12-acre lake reaching 5 feet at its deepest. Access is limited, which keeps boat traffic low — a plus for solitude seekers. Anglers primarily target Largemouth Bass. Note that invasive species (Eurasian Water-Milfoil) have been documented here — clean your boat before leaving.
Bottom composition: 30% sand, 25% gravel, 5% rock, 40% muck
Type: lake · Hydrology: DRAINAGE
Lake Location
43.11500° N, 88.42970° W
WBIC 850500 · Wisconsin DNRFish Species
Full table →Fishing Tips
- ·Largemouth bass relate to shallow structure. Work topwater lures at dawn in summer, then switch to soft plastics rigged weedless around lily pads and fallen wood.
Local's Guide
Fishing
Species-specific tips above. Wisconsin fishing license required for ages 16+. See current season regulations below.
View fishing regulations ↓Swimming
Sandy bottom sections make for good swimming. No lifeguard on duty — swim at your own risk.
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Nearby Dining
Looking for supper clubs and bait shops near Tierney Lake? Local dining recommendations coming soon.
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Insider Tips
Local knowledge about Tierney Lake — best times to visit, quiet spots, and what the regulars know. Contributed tips coming soon.
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Lake Conditions
Water Clarity
—
No data
Trophic Status
—
No data
Invasive Weeds
Present
Eurasian Water-Milfoil
Seasonal Notes
Coming soon
Ice-out dates, peak fishing windows
Condition data sourced from Wisconsin DNR surveys. Real-time weed and clarity reports coming soon.
Invasive Species Present
Eurasian Water-Milfoil has been documented in Tierney Lake. Clean, drain, and dry all watercraft and equipment before leaving.
Report sightings to the Wisconsin DNR invasive species hotline.Frequently Asked Questions
What fish can you catch in Tierney Lake?
Tierney Lake is home to Largemouth Bass. Wisconsin fishing regulations apply — check current seasons and size limits before heading out.
Can you boat on Tierney Lake?
Tierney 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 Tierney Lake?
Tierney Lake has 12 acres in surface area, a maximum depth of 5 feet.
What is the bottom of Tierney Lake like?
The lake bottom is composed of 30% sand, 25% gravel, 5% rock, 40% muck. Sandy and gravel bottoms typically support good swimming and healthy fish habitat.
Are there invasive species in Tierney Lake?
Yes — Eurasian Water-Milfoil has been documented in Tierney 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 Tierney Lake located?
Tierney Lake is located in Waukesha County, Wisconsin. GPS coordinates: 43.1150° N, 88.4297° W.
Are there vacation rentals on Tierney Lake?
Stay Northern is building the most complete rental directory for Waukesha County lakes. Check our Tierney 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 Tierney Lake
| Species | Season | Min. Length | Daily Bag |
|---|---|---|---|
| Bullheads | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Catfish | Open All Year | No minimum length limit and the daily bag limit is 10. | — |
| Cisco And Whitefish | Open All Year | No minimum length limit and the daily bag limit is 10. | — |
| Lake Sturgeon | Closed | No fishing allowed. | — |
| Largemouth Bass And Smallmouth Bass | May 2, 2026 to March 7, 2027 | The minimum length limit is 14" and the daily bag limit is 5. | — |
| Muskellunge And Hybrids | May 2, 2026 to December 31, 2026 on open water | The minimum length limit is 40" and the daily bag limit is 1. | — |
| Northern Pike | May 2, 2026 to March 7, 2027 | The minimum length limit is 26" and the daily bag limit is 2. | — |
| Paddlefish | Closed | No fishing allowed. | — |
| Panfish | Open All Year | No minimum length limit and the daily bag limit is 25. | — |
| Rock, Yellow, And White Bass | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Rough Fish | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Round Goby | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Ruffe | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Shovelnose Sturgeon | Closed | No fishing allowed. | — |
| Trout | See specific regulations | https://dnr.wisconsin.gov/topic/fishing/trout/ . | — |
| Walleye, Sauger, And Hybrids | May 2, 2026 to March 7, 2027 | The minimum length limit is 18" and the daily bag limit is 3. | — |
| White Perch | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
Regulations sourced from Wisconsin DNR fisheries data. Always verify current regulations before fishing.
Lake Details
- WBIC
- 850500
- County
- Waukesha County
- Surface Area
- 12 acres
- Max Depth
- 5 ft
- Bottom
- 30% sand, 25% gravel, 5% rock, 40% muck
- Lake Type
- lake
- Coordinates
- 43.1150, -88.4297
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Tierney Lake? Let us know.
Lake data sourced from the Wisconsin DNR. Last updated 3/24/2026.