Sewer summary
James Island, South Carolina. Population: 12,451. Land area: 4.7 sq mi. Sewer service, backups, manholes and wastewater.
Recorded local data
Population12,451Source: census_popest_place. Population year: 2024.
Land area4.7 sq miSource: census_gazetteer. Geography year: 2023. Water area is excluded.
Derived from recorded data
Residents per square mile2,624.8Population / land area. Population and geography may refer to different years.
Model scenario
Service connections~ 71Scenario: (population / 2.45 (assumed people per household)) x 0.014. Coefficients are assumptions, not locally measured rates. Not a verified object count.
Manhole zones~ 1Scenario: (population / 10,000) x 1.1. Coefficients are assumptions, not locally measured rates. Not a verified object count.
Wastewater routes~ 1 miScenario: (land area in square miles x 2.2 (assumed road miles per square mile)) x 0.12. Coefficients are assumptions, not locally measured rates. Not a verified object count.
Model values are scenarios, not an inventory or evidence that a service exists. Queues, applications, incidents, service users and unsafe homes are not inferred from population. Missing data does not mean zero.