Drainage summary
Pima County, Arizona has a recorded population of 1,080,149. For drainage, the page currently shows stormwater segments: ~ 3,639, ditches and channels: ~ 173, low points: ~ 72, road shoulders: ~ 2,426, residents covered: 1,080,149. The figures use the available U.S. geography, population, housing and local-structure data for this place.
Calculated from U.S. geography, population and local structure. Public messages are moderated before publication.