1809-1948
1948-1989 (East Berlin)
Since 1948 (West Berlin and after reunification)
... has a total area of 20.0 km² (7.7 mi²). 11.4 km² (4.4 mi²) of it is land and 8.6 km² (3.3 mi²) of it is water. The total area is 42.82% ...