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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


Amenities at Blue Lake include:
  • Boat Access
  • Fishing Jetty
  • Accessible Pier
  • Boat Rental
  • Picnic Area
  • Beach
  • Trails
  • Restrooms
  • Camping
  • Hard Surface Boat Ramp

Fishing Report

The Missouri River at Decatur, Nebraska is at 21.69ft. /32,600 cfs./76 degrees fahrenheit. The Missouri River has dropped .51 feet from last week. The Missouri River has changed from the recent high water, watch out for logs and sandbars that are potential hazards. Fishing has improved overall from last week with the stable conditions on the Missouri River.
Black Bullhead - Good: Fishing continues to be good for bullheads at Blue Lake a good place to take kids fishing for fast action
Channel Catfish - Good: Fishing continues to be good for channel catfish try worms and dipbait for success.

Fishing Forecast

Lake Maps

Download Printable Lake Map

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

Popular Fish Species at this Lake


Fish Surveys

Lake Fish Survey Data Data from the most recent fisheries survey of this lake is provided on this external web site. This data may include information from various netting surveys and/or electroshocking surveys. Data includes numbers of fish sampled, and fish size ranges. Not all lakes are sampled every year.

Lake Mini-report

Lake Reports Summary report information about selected (~130) lakes regarding water quality, upstream land use, usage, economic value and more. Reports are customizable by the user to include only that information which the user desires to include.

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.