Blackhawk Lake
Iowa County, Wisconsin
About Blackhawk Lake
Blackhawk Lake earns its reputation as one of Iowa County's premier walleye fisheries, a mid-sized lake at 212 acres and up to 42 feet deep. The lake has public boat landing access, making it easy to launch for a day on the water. Anglers target Largemouth Bass 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.
Type: flowage · Hydrology: DRAINAGE
Lake Location
43.02110° N, 90.28500° W
WBIC 1239400 · Wisconsin DNRFish Species
Full table →Fishing Tips
- ·Walleye feed most actively at dawn and dusk. Jig along deep structural breaks or troll crankbaits along weedlines at 6–8 ft depth.
- ·Night fishing under a full moon can produce excellent walleye results from late June through August.
- ·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
Check conditions before swimming. No lifeguard on duty. Watch for aquatic vegetation near shorelines.
Content coming soon
Nearby Dining
Looking for supper clubs and bait shops near Blackhawk Lake? Local dining recommendations coming soon.
Content coming soon
Insider Tips
Local knowledge about Blackhawk Lake — 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 Blackhawk 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 Blackhawk Lake?
Blackhawk Lake is home to Largemouth Bass (Common), Panfish (Common), Smallmouth Bass, and Walleye. Wisconsin fishing regulations apply — check current seasons and size limits before heading out.
Is there a public boat launch on Blackhawk Lake?
Yes — Blackhawk Lake has a public boat landing providing watercraft access. Check for posted local ordinances at the landing before launching.
How big is Blackhawk Lake?
Blackhawk Lake has 212 acres in surface area, a maximum depth of 42 feet.
Are there invasive species in Blackhawk Lake?
Yes — Chinese Mystery Snail and Curly-Leaf Pondweed and Eurasian Water-Milfoil and Rusty Crayfish have been documented in Blackhawk 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 Blackhawk Lake located?
Blackhawk Lake is located in Iowa County, Wisconsin. GPS coordinates: 43.0211° N, 90.2850° W.
Are there vacation rentals on Blackhawk Lake?
Stay Northern is building the most complete rental directory for Iowa County lakes. Check our Blackhawk Lake vacation rentals listing — if none are available yet, check back soon or browse nearby Iowa County lake rentals.
Fishing Regulations
Current season regulations for Blackhawk 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 | No minimum length limit 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 10. | — |
| 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
- 1239400
- County
- Iowa County
- Surface Area
- 212 acres
- Max Depth
- 42 ft
- Lake Type
- flowage
- Coordinates
- 43.0211, -90.2850
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Blackhawk Lake? Let us know.
Boat Landings (1)
Public Boat Landing
Lake data sourced from the Wisconsin DNR. Last updated 3/24/2026.