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


About Diamond Lake

Surface Area (acres): 98.00
Maximum Depth (feet): 18 ft. (2024)
Motoring Restrictions: Electric Motors Only
See below for additional location-specific regulations

Location

County: Poweshiek
Description: Constructed lake
Coordinates: 41.58730453, -92.55163655

Nearby Parks

- No results found

Amenities

Amenities at Diamond Lake include:
  • Boat Access
  • Fishing Jetty
  • Picnic Area
  • Trails
  • Accessible Facilities
  • Playground
  • Restrooms
  • Camping
  • Good/Excellent Shorefishing
  • Hard Surface Boat Ramp
  • Accessible Shoreline

Fishing Report

Please contact the local fisheries management biologist for current information.

Fishing Summary

Good numbers of bluegill up to 8-inches. There are some redear sunfish here that are mostly 7- to 9-inches. Crappie numbers are good with two sizes represented most often; 6 1/2-inch fish and the 8- to 9-inch fish. Common carp are taking hold with large numbers of 14- to 20-inch fish. Channel catfish numbers are good with 12- to 19-inch fish most common. Largemouth bass numbers are fair with all sizes of bass up to 21-inches. - Last updated on 01/09/2019.

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

  • 9/20/23 - 1,752 Channel Catfish (7.8)
  • 09/13/2021 - 1,764 Channel Catfish (8.8)
  • 10/01/2019 - 1,767 Channel Catfish (9.6)
  • 09/26/2018 - 1,780 Channel Catfish (8.7)
  • fall 2016 - 1,765 Channel Catfish (9.1")

Management

  • 2023 - Fish Cleaning Station-Fish Cleaning Station: Located next to restroom above boat ramp.
  • 2013 - Watershed-Activities: Preliminary engineering has been done to repair and modify spillway.
  • 2013 - RAFT sampling-RAFT: Collected and prepared fish tissues for RAFT study.
  • 2011 - Fishery Renovation-Chemical-Rotenone: Applied rotenone to a 5 acre marsh above Diamond Lake in Poweshiek County. We estimated that over 4,000 pounds of carp were removed.
  • 2010 - Fishery Renovation-Chemical-Rotenone: Lowered and applied rotenone to a 5 acre marsh above Diamond Lake in Poweshiek County.

Motoring Restrictions

Motoring Restrictions: Electric Motors Only

Contacts for this Location

Fishing Regulations

The summaries listed below are a partial listing provided for your benefit. Familiarize yourself with the complete Fishing Regulations here: Iowa DNR Fishing Regulations and Laws.

Aquatic Invasive Species

    No known aquatic invasive species have been found

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

Fish Surveys

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