Sewer summary
St. Clair County, Illinois has a recorded population of 251,149. For sewer, the page currently shows service connections: ~ 1,435, manhole zones: ~ 28, backup-risk points: ~ 10, wastewater routes: ~ 174, housing units: 102,510. 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.