Johnson Lake is located in Itasca County, Minnesota. This lake is 304 acres in size. It is approximately 51 feet deep at its deepest point. When fishing, anglers can expect to catch a variety of fish including Black Bullhead, Bluegill, Brown Bullhead, Largemouth Bass, Northern Pike, Rock Bass, Walleye, Yellow Bullhead, Yellow Perch, and Pumpkinseed.