Longnose Dace inhabits medium-sized streams, large rivers and large lakes with gravel bottoms and in areas of strongest current. It is found in all watersheds except Long Island away from the mainland. Preliminary studies suggest that it is increasing in the Lower Hudson watershed due to increased stream channelization resulting from increasing urbanization. There appears to be more records in recent times than earlier, from streams of eastern, central and southern watersheds. However, there appear to be fewer records from the central Adirondacks.