Westermarsch II was an independent municipality until the 1972 territorial reform in Lower Saxony and, as such, a member of the collective municipality ("Samtgemeinde") of Leybucht in Lower Saxony. Today Westermarsch II is a village in the East Frisian borough of Norden with about 500 residents (as at 12/2016). The village parish covers an area of 11.69 km2.