Fish Iowa - Lakes, Ponds, and Reservoirs - Lake Keomah


About Lake Keomah

Surface Area (acres): 78.00
Maximum Depth (feet): 18.3 ft. (2019 - 18.3')
Motoring Restrictions: Electric Motors Only
See below for additional location-specific regulations

Location

County: Mahaska
Description: Keomah
Coordinates: 41.29398965, -92.53961076

Amenities

Amenities at Lake Keomah include:
  • Fishing Jetty
  • Accessible Pier
  • Picnic Area
  • Beach
  • Trails
  • Accessible Facilities
  • Playground
  • Restrooms
  • Camping
  • Good/Excellent Shorefishing
  • Hard Surface Boat Ramp
  • Accessible Shoreline
  • Fish Cleaning Station

Fishing Report

Contact the Rathbun Fish Hatchery at 641-647-2406 with questions about fishing in south central Iowa. Ice conditions vary at each lake with open water at some areas. Use caution if going out.
Lake Keomah is drained for a lake restoration project. Please stay out of the lakebed.

Fishing Forecast

Keomah has a very high quality bluegill population. Sampling in 2016 yielded a very high abundance of 8- to 10-inch bluegills. Largemouth bass are extremely abundant, but usually less than 15 inches. Keomah supports a very high quality channel catfish fishery with fish of 5 pounds or more common. Crappie at Keomah are of moderate quality, most 8- to 9+-inches.(2016)

Consumption Guidelines

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

In nearly all cases, Iowa fish are safe to eat. Cleaning and/or preparing the meal causes most of the problems regarding taste or color of fish. Like all living creatures, fish are susceptible to diseases, parasites, and other naturally occurring conditions in the water. If you suspect your fish is affected by any of these conditions, do not eat it. Consider eating smaller and younger fish which usually have lower levels of contaminants than larger ones. Most contaminants accumulate in larger, older fish. For additional information, check out our resources for eating and cooking Iowa caught fish.

To learn more about fish tissue monitoring, visit our Fish Tissue Monitoring page .

Stocking

  • 9/12/2017 - 847 Channel Catfish (7.7")
  • 09/24/2015 - 800 Channel Catfish (8")

Management

  • 2024 - Exotic Species-Invertebrates: Rusty Crayfish found then preserved in vial
  • 2024 - Fishery Renovation-Other: The lake was drained on July 9, 2024 for a lake renovation project.
  • 2023 - Fish Cleaning Station-Fish Cleaning Station: Fish cleaning station location
  • 2021 - Exotic Species-Vegetation: Brittle Naiad reported from access point survey, verified with photos
  • 2021 - Exotic Species-Vegetation: Brittle Naiad reported
  • 2019 - Water Sampling-Temperature: Multiple dates and values
  • 2019 - Water Sampling-Secchi Disc: Multiple dates and values
  • 2019 - Morphology-Mean Depth: 8.7'
  • 2019 - Morphology-Maximum Depth: 18.3'
  • 2019 - Morphology-Watershed Area Ratio: 27.1:1
  • 2019 - Morphology-Lake Surface Area: 78 acres
  • 2016 - Water Sampling-Secchi Disc: 121"
  • 2016 - Water Sampling-Temperature: 65° F
  • 2015 - RAFT sampling-RAFT: Largemouth bass collected. Now known as IFTMP.
  • 2014 - Fish Cleaning Station-Fish Cleaning Station: Location of fish cleaning station.
  • 2013 - Water Sampling-Secchi Disc: Multiple dates and values
  • 2013 - Water Sampling-Temperature: Multiple dates and values
  • 2010 - RAFT sampling-RAFT: Largemouth bass collected. A consumption advisory was necessary after the results of this sample: Do not eat more than 1 meal/week of largemouth bass due to levels of mercury.
  • 2009 - Water Sampling-Secchi Disc: Multiple dates and values
  • 2009 - Water Sampling-Temperature: Multiple dates and values
  • 2009 - RAFT sampling-RAFT: Largemouth bass and channel catfish were collected.

Motoring Restrictions

Motoring Restrictions: Electric Motors Only

Contacts for this Location

Fishing Regulations

  • 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:

Aquatic Invasive Species

  • Brittle Naiad
  • Rusty Crawfish

To learn more about AIS, visit the Iowa DNR's Aquatic Invasive Species page for more information and resources.

Fish Surveys

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