Water summary
St. Clair County, Illinois has a recorded population of 251,149. For water, the page currently shows service connections: ~ 1,538, pressure zones: ~ 20, hydrant and valve areas: ~ 30, outage-sensitive sites: ~ 9, 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.