Johnson Lake is the largest lake in the Banner Marsh SFWA at over 600 surface acres. It is composed of a maze of final cut lakes interconnected by ditches to large shallow pond areas. The shallow areas (less than 6 feet) compose approximately 400 acres of flooded brush and diverse aquatic vegetation. The maximum water depth is 64.0 feet. Water clarity often exceeds 8 feet in the summer.

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Maximum horsepower: 25

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Additional Lake Information: The main access area has a concrete boat ramp, 50 vehicle and trailer parking lot, restrooms and a handicap accessible fishing pier. The lake has a 25 h.p. motor limit. The site is open 24 hours a day, except for the Central Zone Duck Season, at which time only shoreline fishing is allowed after 1:00 p.m. Two-pole and line fishing only except carp can be taken by bow and arrow devices, gigs or spears during May through August.

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A total of 42 muskie were sampled by the spring trapnet survey in 2014. These fish ranged from 28 to 43 inches long. The body condition of these fish was very good. In 2001, a total of 2,174 muskie at an average size of 11.4 inches were stocked; in 2002, 725 muskie at an average size of 10.9 inches were stocked; and in 2003, 1333 muskie at an average size of 10 inches were stocked into Johnson Lake. No muskie were stocked in 2004, but 600 of at least 10 inches long were annually stocked from 2005 through 2014.