This species is widely distributed in the central part of North America from the St. Lawrence to the Red River of the North and south to the gulf coast, with disjunct populations in Virginia and North Carolina. It occurs throughout New York State.
Mimic shiners live in lakes and the quieter parts of streams, often around vegetation.
Spawning probably takes place in aquatic vegetation with no nesting or parental care. It possibly spawns at night in moderately deep water. The spawning season is June and July. Entomostracans, algae and other plant debris, and midge adults and larvae are the most frequent food items. Distribution of the mimic shiner in NY state.