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Roberts Creek Lake

General Information

County: Marion
Location: 6 miles northeast of Knoxville
Acres: 288.00
Maximum Depth: 20.4 ft. (2008 - Data collected as part of the statewide lake mapping program.)
Motoring Restrictions: No Size Limit at No Wake


Amenities at Roberts Creek Lake include:
  • Boat Access
  • Hard Surface Boat Ramp

Fishing Report

No recent updates

Fishing Forecast

The bluegills sampled in 2013 were very abundant and ranged in size from 4 to 7.5 inches. White and black crappie are both present in good numbers. Black crappie are the most abundant and are mostly 7 to 9 inches. White crappie are fewer in number, but larger in size. Many white crappie were 9 to 11 inches. Largemouth bass were sampled in low numbers due to high lake levels at the time of sampling. A fair bass population can be expected with fish at all sizes up to 20 inches. Channel catfish are very abundant in all sizes from 9 to 29 inches with a large group of fish between 11 and 16 inches. Since Roberts Creek is connected to Red Rock Reservoir during high water, other game fish species do migrate in at mostly low numbers. The additional game fish found include white bass, wipers, walleye, and flathead catfish. (2013)

Lake Maps

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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.