Population 2016 est. 179,571
Area 226.03 square kilometers
Highest elevation 102 meters above sea
level (Bockum-Hoevel),
lowest elevation 43 meters above seal level (Bockum-Hoevel) (mean 65 meters)
Religion:
Roman Catholics 39.0%, Evangelicals (mostly
Lutherans) 29.4%, others (incl. Muslims and atheists) 35.2%