Minnesota · by county
Benton County fishing lakes
Benton County has just 2 surveyed fishing lakes. Little Rock Lake is the bigger one at 1,311 acres, last surveyed in 2025, and it grades B for both northern pike and crappie. Mayhew Lake is the deeper of the two at 20 feet. One of them has DNR stocking records.
A Guide lake has a full page with a depth map, DNR survey data, top spots and stocking history. A Survey lake has the survey data and stocking history but no depth map, because the DNR has not published one. The rest open in the live map.
| Lake | Fish | Acres | Max depth | Last survey |
|---|---|---|---|---|
| Little Rock Lake Guide | Walleye, Largemouth, Smallmouth, Pike, Bluegill, Crappie, Perch, Rock bass, Catfish | 1,311 | 17 ft | 2025 |
| Mayhew Lake Survey | Walleye, Largemouth, Pike, Bluegill, Crappie, Perch, Rock bass | 128 | 20 ft | 2022 |
Quick answers
Fishing in Benton County
What is the best fishing lake in Benton County?
Little Rock Lake grades B for northern pike, the highest grade in Benton County on this site. Grades are based on DNR survey catch rates, fish size and trophy history.
How many fishing lakes are in Benton County?
The DNR has surveyed 2 lakes in Benton County, about 1,439 acres of water in all. 1 of them has a full guide page here.
What fish can you catch in Benton County?
DNR surveys have found walleye, largemouth bass, smallmouth bass, northern pike, bluegill, crappie, yellow perch, rock bass and channel catfish in Benton County lakes.
Which lake in Benton County is deepest?
Mayhew Lake, at 20 feet. The largest is Little Rock Lake at 1,311 acres.
Are lakes in Benton County stocked?
Yes. The DNR has stocking records for 1 of the county's 2 surveyed lakes. If a lake has a page here, it lists what the DNR stocked and when.
Featured guide spot
Your guide service here
Featured spots are bought one lake at a time. Sponsor a lake in this county and your listing runs here too, shared evenly with any other sponsor in the county. Free through December 31, 2026.
Then $20 a month from January. Cancel any time.
Survey years in grey are more than 20 years old. Surveys that old do not count toward grades.