Drainage summary
Mason County, Washington has a recorded population of 69,632. For drainage, the page currently shows stormwater segments: ~ 380, ditches and channels: ~ 56, low points: ~ 23, road shoulders: ~ 253, residents covered: 69,632. 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.