The population density normally reported for Oklahoma City using the area of its city limits can be a bit misleading. Its urbanized zone covers roughly 244 sq mi (630 km2) resulting in a density of 2,500 per square mile (2013 est), compared with larger rural watershed areas incorporated by the city, which cover the remaining 377 sq mi (980 km2) of the city limits.

What covers the remaining 377 square miles?