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North Twin Lake

General Information

County: Calhoun
Location: 4 miles north of Rockwell City
Acres: 453.00
Maximum Depth: 11.7 ft. (2019)
Motoring Restrictions: none

Nearby Parks

Twin Lakes State Park

Amenities

Amenities at North Twin Lake include:
  • Boat Access
  • Picnic Area
  • Beach
  • Trails
  • Restrooms
  • Camping
  • Hard Surface Boat Ramp

The near shore bite has been fair to good. Water temperatures continue to cool down. Most ramp docks have been removed. For more information, contact the Black Hawk District office at 712-657-2638.
Water levels are around 20 inches below crest. Boat ramp courtesy docks on the south boat ramps are removed for the season.
Channel Catfish - Slow: Try fishing from shore in 2 to 6 feet of water along rocky shorelines and the wooded shores in Muddy Bay. North Twin Lake has a good population of 16 to 24 inch fish (~1 to 3 pounds).
Walleye - Slow: Cast in near shore areas and anywhere with structure and move often to find actively feeding fish.

Lake Maps

Download Printable Lake Map

You can zoom in on the map for bathymetric information for some lakes

  • September 2022 - 3,873 Largemouth Bass (4)
  • May 2022 - 388 Muskellunge (12.8)
  • 9/19/22 - 2,265 Channel Catfish (9.1)
  • 6/16/22 - 4,838 Wiper (Hybrid Striped Bass) (1.3)
  • 5/5/22 - 1,402,500 Walleye (Fry)
  • 11/15/22 - 707 Muskellunge (11.8)
  • 11/02/2021 - 2,235 Walleye (9)
  • 10/05/2021 - 1,798 Largemouth Bass (3.8)
  • 06/29/2021 - 9,581 Wiper (Hybrid Striped Bass) (1.7)
  • 05/03/2021 - 1,428,698 Walleye (Fry)
  • 04/08/2021 - 153,188 Northern Pike (Fry)
  • October 2020 - 2,445 Largemouth Bass (5.3)
  • 10/01/2020 - 4,534 Walleye (6.5)
  • 09/21/2020 - 2,270 Channel Catfish (8.3)
  • 04/13/2020 - 476,984 Northern Pike (Fry)
  • 10/25/2019 - 4,223 Largemouth Bass (4.3)
  • 06/25/2019 - 4,550 Wiper (Hybrid Striped Bass) (1.3)
  • 05/13/2019 - 2,361 Northern Pike (1.22)
  • 05/06/2019 - 1,400,000 Walleye (Fry)
  • 10/19/2018 - 3,458 Walleye (5.1)
  • 10/01/2018 - 2,268 Channel Catfish (8.2)
  • 07/11/2018 - 4,563 Walleye (2.8)
  • 05/14/2018 - 1,366,295 Walleye (Fry)
  • 5/2/2017 - 1,400,000 Walleye (fry)
  • 11/6/2017 - 1,330 Walleye (9.3")
  • 11/6/2017 - 3,204 Walleye (9.3")
  • 4/29/16 - 1,400,000 Walleye (Fry)
  • 10/5/16 - 4,542 Walleye (4.5")
  • 10/14/2015 - 4,555 Walleye (6")
  • 06/30/2015 - 11,071 Walleye (2.4")
  • 09/25/2014 - 4,709 Walleye (6")
  • 09/10/2014 - 1,352 Channel Catfish (8")
  • 07/17/2014 - 11,298 Walleye (2-3")

  • Curlyleaf Pondweed

The Fishing Regulations brochure is available for download. The summaries listed below are a partial listing provided for your benefit.

  • Bigmouth Buffalo
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • Black Bullhead
    • Season: Continuous
    • Daily Bag Limit: unlimited
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • Black Crappie
    • Season: Continuous
    • Daily Bag Limit: combined black and white crappie, 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: No daily limit on private waters
  • Bluegill
    • Season: Continuous
    • Daily Bag Limit: 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: No daily limit on private waters
  • Channel Catfish
    • Season: Continuous
    • Daily Bag Limit: combined: channel, blue and flathead catfish, 8 fish
    • Possession Limit: combined: channel, blue and flathead catfish, 30 fish
    • Length Limit: none
    • Other: Except for border lakes
  • Common Carp
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: May be taken by hand fishing, by snagging, by spear or by bow and arrow, day or night.
  • Freshwater Drum
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: May be taken by hand fishing, by snagging, by spear or by bow and arrow, day or night.
  • Muskellunge
    • Season: Continuous
    • Daily Bag Limit: combined: muskellunge and tiger muskellunge, 1 fish
    • Possession Limit: combined: muskellunge and tiger muskellunge, 1 fish
    • Length Limit: 40-inch minimum
    • Other: except for West Okoboji, East Okoboji, and Spirit Lakes (Dickinson County)
  • Walleye
    • Season: Continuous
    • Daily Bag Limit: combined walleye, sauger and saugeye; 5 fish
    • Possession Limit: combined walleye, sauger and saugeye; 10 fish
    • Length Limit: none
    • Other:
  • Yellow Bass
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:

North twin has historically been dominated by rough fish, including bigmouth buffalo and common carp. 140,000 pounds of buffalo were removed in the spring of 2019 and the water clarity had improved some. If the water clarity improvement is maintained anglers can expect to see better bluegill, crappie, and bass fishing in the coming years. North Twin has a decent walleye population. The densities are not as high relative to other natural lakes in the region, but the fish are large and many of the fish range from 22 to 27 inches. The channel catfish population is strong and there are many fish from 2 to 5 pounds in the lake. Hybrid striped bass, northern pike, and largemouth bass were stocked following the buffalo removal, but it will take several years for these fish to recruit to the creel. Walleye and catfish are stocked on a regular basis. The yellow bass numbers have declined substantially, but their size has improved slightly.(2020)

Tip: Click the arrow in the lower right corner to view the Fish Survey Data tool in full-screen mode.

Contacts

Iowa-Caught Fish Are Safe to Eat, In Almost All Cases

The vast majority of Iowa’s streams, rivers and lakes offer safe and high-quality fish that pose little or no threat to human health if consumed. Some limitations may apply for young children and pregnant women. Here’s a Fish Consumption Fact Sheet from the Iowa DNR and the Iowa Dept. of Public Health for more information.