See also: Messier 100 (http://www.seds.org/messier/m/m100), SEDS Messier pages
... km² (3.0 mi²). 7.5 km² (2.9 mi²) of it is land and 0.2 km² (0.1 mi²) of it is water. The total area is 2.35% water. Demographics As of the ...