Skip to main content

Freshwater Drum

Freshwater Drum

Freshwater Drum are Iowa's only native member of the drum family and are abundant in Iowa's large rivers and water bodies. They are excellent targets for Iowa anglers, particularly during summer months when they provide outstanding fishing success.

Scientific Name: Aplodinotus grunniens

Physical Characteristics:
  • Deep-bodied, silvery appearance with a distinctive hump-backed profile created by the steep slope from snout to dorsal fin.
  • They have a long dorsal fin divided into two lobes and a complete lateral line extending through the caudal fin.
  • Adults commonly weigh up to 5 pounds, though Iowa's state record is 46 pounds.

What to know

Habitat Distribution

  • Found in larger inland rivers, streams, reservoirs, and deep natural lakes.
  • Less common in northeast Iowa's interior streams but present in major impoundments.

Key Locations

  • Missouri and Mississippi Rivers, Red Rock Reservoir, Coralville Reservoir, Saylorville Reservoir, Iowa Great Lakes including Spirit Lake and the Okoboji lakes, Mississippi River Pools 9-19, Dickinson County lakes.

Specific Spots

  • Shallow or muddy areas of large lakes, deep backwater pools of rivers, reservoirs at depths of 30+ feet, slow-moving pools near fast water, deeper river channels and lake areas, hard-bottom areas.

Freshwater Drum FAQ

Answers from onWater's species guide.

What are the best lures and bait for Freshwater Drum in Iowa?

Nightcrawlers, crawdads, shrimp, minnows, shiners, small jigs (1-ounce models for deep summer/winter fish), blade baits like Binsky Blade Baits, gold or silver spoons, crankbaits, jerkbaits, live bait, reflective lures.

What flies work for Freshwater Drum in Iowa?

Clouser Minnows in chartreuse/white, olive/white, or brown/white, black or olive Woolly Buggers, Muddler Minnows in natural deer hair, black stonefly nymphs.

When is the best time to fish for Freshwater Drum in Iowa?

Summer months (June and July) provide outstanding fishing success. Spring fishing is productive. Fall tactics mirror spring approaches as fish migrate to tributaries and feed aggressively before winter. May and June spawning period is less ideal for angling as they focus on reproduction rather than feeding.

How do you catch Freshwater Drum in Iowa?

Bottom feeding techniques, cast upstream in spring, use fish finders to locate schools in summer, fish deep in winter (up to 60 feet). Retrieve fly patterns slowly along bottom features. Fish hard-bottom areas for best blade bait presentation.

What do Freshwater Drum eat?

Feed primarily on fish, crayfish, and aquatic insects. Diet studies from Iowa's Dickinson County lakes revealed they consume primarily insect larvae (46% of diet), fish (32%), and crustaceans (12%), with mollusks contributing only about 3% despite popular belief.

Fish smarter with real-time insights

Whether you're en route and conditions shift or you're looking for the best spot based on current flows, we enable you to make informed decisions on the fly.

See it in the app

Most maps show you water.
onWater shows you Freshwater Drum.

  1. 01 · Species map filter

    Map every Freshwater Drum water

    Pick Freshwater Drum and the map zeroes in on the waters they call home. No more guessing which lake holds them.

  2. 02 · Waterbody species

    Tap any water. See what lives there.

    Species, behavior and seasonal patterns for every lake, river and pond, before you leave the driveway.

  3. 03 · Angler Intelligence

    Ask how to catch Freshwater Drum

    Tactics, gear and timing from onWater's AI fishing guide, tuned to the species and the water you're on.

Stop guessing where Freshwater Drum are.

Open the map, filter by Freshwater Drum, and head to water that holds them. Download onWater and plan your next trip in minutes.

  • Species map filter
  • Angler Intelligence
  • Fishing journal
Try onWater+ for free

Explore other species

Trout, bass, salmon, panfish and everything in between. Each guide unpacks the behavior, seasons, and tactics that put fish in the net.

No species information available.

Iowa licenses and regulations

Explore nearby waters

Explore Iowa waters

Top fishing waters

Popular Cities

Loading popular cities...

Smarter Fishing Starts in the App.

onWater Fish gives you everything you need to plan smarter, fish better, and own every trip from first cast to last.