Lake Keomah

General Information

County: Mahaska
Location: 6 miles east of Oskaloosa
Acres: 78.00
Maximum Depth: 18.9 ft. (2006 - Data collected as part of the statewide lake mapping program. 18.9')
Motoring Restrictions: Electric Motors Only

Nearby Parks

Lake Keomah State Park

Amenities

Amenities at Lake Keomah include:
  • Boat Access
  • Fishing Jetty
  • Accessible Pier
  • Picnic Area
  • Beach
  • Trails
  • Accessible Facilities
  • Restrooms
  • Camping
  • Good/Excellent Shorefishing
  • Hard Surface Boat Ramp
Please remember to take your trash with you so your favorite fishing spot is clean. Contact the Rathbun Fish Hatchery at 641-647-2406 with questions regarding angling in south central Iowa.
Bluegill - Fair: Use a chunk of nightcrawler under a bobber and target the shorelines and around the fishing jetties. Target areas with submerged structure.
Largemouth Bass - Fair: Try spinnerbaits around the fishing jetties and around any aquatic vegetation.
Download Printable Lake Map

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

  • Sep 24 2015 12:00AM - 800 Channel Catfish (8")
  • 09/09/2011 - 1,269 Channel Catfish (8.2")
  • 09/14/2009 - 1,656 Channel Catfish (8.0")
  • 07/20/2007 - 1,840 Channel Catfish (7.5"-)
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:
  • 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:
  • 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:
Largemouth bass are very abundant at Lake Keomah. Their size structure is dominated by 10 to 13 inch fish. However, recently fish up to 19 inches were sampled. This high density of bass produces excellent bluegill and crappie angling. Bluegill up to nearly 9 inches were recently sampled and crappie abundance is good with most fish in the 8 to 11 inch range. Channel catfish size quality is excellent with a high abundance of fish over 4 pounds.(2015)

Contacts

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.