Drainage summary
Portland, Oregon has a recorded population of 635,749. For drainage, the page currently shows stormwater segments: ~ 53, ditches and channels: ~ 22, low points: ~ 9, road shoulders: ~ 35, residents covered: 635,749. 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.