Blue Lake

General Information

County: Monona
Location: 3 miles west of Onawa
Acres: 269.00
Maximum Depth: 11.7 ft. (2006 - Mapped in 2006 as part of the statewide lake mapping program.)
Motoring Restrictions: none

Nearby Parks

Lewis and Clark State Park

Amenities

Amenities at Blue Lake include:
  • Boat Access
  • Fishing Jetty
  • Picnic Area
  • Beach
  • Trails
  • Restrooms
  • Camping
  • Hard Surface Boat Ramp
No recent updates
Download Printable Lake Map

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

  • 05/20/2015 - 2,755 Northern Pike (2.9")
  • 09/29/2014 - 1,618 Channel Catfish (8")
  • 06/03/2014 - 1,494 Northern Pike (2-3")
  • 08/16/2013 - 5,056 Walleye (2.8")
  • 05/28/2013 - 5,566 Northern Pike (2.7")
  • 09/18/2012 - 1,622 Channel Catfish (8.4")
  • 05/07/2012 - 2,716 Northern Pike (2.7")
  • 05/17/2011 - 3,145 Northern Pike (2.7")
  • 05/12/2009 - 5,448 Northern Pike (2.8")
  • 09/25/2008 - 1,620 Channel Catfish (8.0")
  • 06/24/2008 - 27,000 Largemouth Bass (1.3")
  • 05/08/2008 - 2,803 Northern Pike (2.3")
  • 06/19/2007 - 7,242 Channel Catfish (6.5")
  • 06/19/2007 - 27,073 Channel Catfish (2.4"-)
  • 06/14/2007 - 30,710 Largemouth Bass (1.2")
  • 03/21/2007 - 247,472 Bluegill (1.5")
The Fishing Regulations brochure is available for download. The summaries listed below are a partial listing provided for your benefit.

  • Black Bullhead
    • Season: Continuous
    • Daily Bag Limit: unlimited
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • 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: Associated chutes and backwaters of border rivers (Missouri, Big Sioux, and Des Moines) where intermittent or constant flow occur have a catfish combined daily bag of 15 fish. Associated chutes and backwaters of the Mississippi River have no daily bag or possession limit.
  • 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.
  • Largemouth Bass
    • Season: Continuous
    • Daily Bag Limit: combined black bass, 3 fish
    • Possession Limit: combined black bass, 6 fish
    • Length Limit: 15-inch minimum
    • Other:
  • Northern Pike
    • Season: Continuous
    • Daily Bag Limit: 3 fish
    • Possession Limit: 6 fish
    • Length Limit: none
    • Other: Associated chutes and backwaters of border rivers where intermittent or constant flow occur have the following limits: Mississippi River-5 fish daily bag, 10 fish possession limit; Missouri River-5 fish daily bag, 10 fish possession limit; Big Sioux River-6 fish daily bag, 12 fish possession limit
The size structure of largemouth bass is very good in Blue Lake. It is a good lake to catch a memorable or trophy but don't expect a lot of fish as densities are average. Early spring crappie fishing was fair, some sorting required. A lot crappie in the 5-7" range suggest good fishing in future years. Bluegill (6-7") and bullhead (10") are abundant. The channel catfish population is good and underutilized.(2015)

Contacts

Water Quality

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. Here is a list of current fish consumption advisories for Iowa lakes and rivers.