About Hat Rapids Flowage
Hat Rapids Flowage is a scenic Oneida County lake worth knowing about, covering 295 acres. Access is limited, which keeps boat traffic low — a plus for solitude seekers. Note that invasive species (Chinese Mystery Snail) have been documented here — clean your boat before leaving.
Type: flowage · Hydrology: DRAINAGE
Lake Location
45.57140° N, 89.48070° W
WBIC 1567325 · 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
Hat Rapids Flowage has limited visibility and a mixed bottom, making it generally good for swimming with gradual entry in most areas. The 295-acre lake offers a quieter, more intimate swimming experience.
Nearby Dining
Local dining recommendations for Hat Rapids Flowage are coming soon. Know a great spot near Hat Rapids Flowage? Share it at staynorthern.com/contact. Looking for restaurants near Oneida County lakes? Visit staynorthern.com/eats for our full northwoods dining guide.
Insider Tips
Hat Rapids Flowage is one of Oneida 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 Hat Rapids Flowage 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
Chinese Mystery Snail
Seasonal Notes
See below
Ice-out dates, peak fishing windows
Ice typically goes out in late April to early May on northern Wisconsin lakes. Walleye and bass fishing peaks from late May through June and again in September and October. Summer brings warm water temps ideal for swimming from late June through August. Fall color peaks in late September — some of the most dramatic foliage in the state. Snowmobile and ice fishing season runs December through March, with hard ice typically forming by late December.
Condition data sourced from Wisconsin DNR surveys. Real-time weed and clarity reports coming soon.
Invasive Species Present
Chinese Mystery Snail has been documented in Hat Rapids Flowage. 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 Hat Rapids Flowage?
Hat Rapids Flowage 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 Hat Rapids Flowage?
Hat Rapids Flowage has 295 acres in surface area.
Are there invasive species in Hat Rapids Flowage?
Yes — Chinese Mystery Snail has been documented in Hat Rapids Flowage. 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 Hat Rapids Flowage located?
Hat Rapids Flowage is located in Oneida County, Wisconsin. GPS coordinates: 45.5714° N, 89.4807° W.
Are there vacation rentals on Hat Rapids Flowage?
Stay Northern is building the most complete rental directory for Oneida County lakes. Check our Hat Rapids Flowage vacation rentals listing — if none are available yet, check back soon or browse nearby Oneida County lake rentals.
Fishing Regulations
Current season regulations for Hat Rapids Flowage
| 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 | May 2, 2026 to June 19, 2026 | The minimum length limit is 14" and the daily bag limit is 5. | — |
| Largemouth Bass And Smallmouth Bass | June 20, 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 | No minimum length limit and the daily bag limit is 5. | — |
| 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. | — |
| Smallmouth Bass | May 2, 2026 to June 19, 2026 | Fish may not be harvested (catch and release only). | — |
| 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 is 15", but walleye, sauger, and hybrids from 20" to 24" may not be kept, and only 1 fish over 24" is allowed. 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
- 1567325
- County
- Oneida County
- Surface Area
- 295 acres
- Lake Type
- flowage
- Coordinates
- 45.5714, -89.4807
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Hat Rapids Flowage? Let us know.
Lake data sourced from the Wisconsin DNR. Last updated 4/29/2026.