Drainage summary
Petersburg Borough, Alaska has a recorded population of 3,436. For drainage, the page currently shows stormwater segments: ~ 1,149, ditches and channels: ~ 97, low points: ~ 41, road shoulders: ~ 766, residents covered: 3,436. 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.