Lake Tomah
Monroe County, Wisconsin
About Lake Tomah
Lake Tomah offers the classic northern Wisconsin combo: northern pike and bass in a Monroe County setting that draws anglers and families alike, a mid-sized lake at 245 acres and up to 19 feet deep. The lake has public boat landing access, making it easy to launch for a day on the water. The fishery includes Largemouth Bass, Northern Pike, and Panfish. Note that invasive species (Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Rusty Crayfish) have been documented here — clean your boat before leaving.
Bottom composition: 50% sand, 0% gravel, 0% rock, 50% muck
Type: flowage · Hydrology: DRAINAGE
Lake Location
43.98160° N, 90.52310° W
WBIC 1342100 · Wisconsin DNRFish Species
Full table →Fishing Tips
- ·Northern pike are ambush predators — target weed edges, fallen timber, and points with large spoons or swimbaits.
- ·Spring pike fishing (ice-out through June) can be outstanding as they move into shallow, warming bays to spawn.
- ·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.
- ·Bluegill and crappie stack up in 8–15 ft of water near weedlines. Small jigs tipped with a waxworm are hard to beat.
- ·Panfish are often excellent for kids and beginners — look for them around any dock or submerged brush piles.
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.
Content coming soon
Nearby Dining
Looking for supper clubs and bait shops near Lake Tomah? Local dining recommendations coming soon.
Content coming soon
Insider Tips
Local knowledge about Lake Tomah — best times to visit, quiet spots, and what the regulars know. Contributed tips coming soon.
Content coming soon
Lake Conditions
Water Clarity
—
No data
Trophic Status
—
No data
Invasive Weeds
Present
Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Rusty Crayfish
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
Chinese Mystery Snail and Curly-Leaf Pondweed and Eurasian Water-Milfoil and Rusty Crayfish have been documented in Lake Tomah. 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 Lake Tomah?
Lake Tomah is home to Largemouth Bass (Common), Northern Pike (Common), and Panfish (Common). Wisconsin fishing regulations apply — check current seasons and size limits before heading out.
Is there a public boat launch on Lake Tomah?
Yes — Lake Tomah has 4 boat landings providing watercraft access. Check for posted local ordinances at the landing before launching.
How big is Lake Tomah?
Lake Tomah has 245 acres in surface area, a maximum depth of 19 feet, a mean depth of 4 feet.
What is the bottom of Lake Tomah like?
The lake bottom is composed of 50% sand, 0% gravel, 0% rock, 50% muck. Sandy and gravel bottoms typically support good swimming and healthy fish habitat.
Are there invasive species in Lake Tomah?
Yes — Chinese Mystery Snail and Curly-Leaf Pondweed and Eurasian Water-Milfoil and Rusty Crayfish have been documented in Lake Tomah. 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 Lake Tomah located?
Lake Tomah is located in Monroe County, Wisconsin. GPS coordinates: 43.9816° N, 90.5231° W.
Are there vacation rentals on Lake Tomah?
Stay Northern is building the most complete rental directory for Monroe County lakes. Check our Lake Tomah vacation rentals listing — if none are available yet, check back soon or browse nearby Monroe County lake rentals.
Fishing Regulations
Current season regulations for Lake Tomah
| 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 18" and the daily bag limit is 1. | — |
| 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 40" and the daily bag limit is 1. | — |
| 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 15" 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
- 1342100
- County
- Monroe County
- Surface Area
- 245 acres
- Max Depth
- 19 ft
- Mean Depth
- 4 ft
- Bottom
- 50% sand, 0% gravel, 0% rock, 50% muck
- Lake Type
- flowage
- Coordinates
- 43.9816, -90.5231
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Lake Tomah? Let us know.
Boat Landings (4)
Boat Landing 1
Boat Landing 2
Boat Landing 3
Boat Landing 4
Lake data sourced from the Wisconsin DNR. Last updated 3/24/2026.