Indiana water systems, mapped
492 systems drawn on their service areas, coloured by the most recent water loss figure each one filed. Every shape is a link to that system's own filings.
- under 11.2%
- 11.2%–19.1%
- 19.1%–26.4%
- 26.4%–36.2%
- over 36.2%
- no figure filed
What a shape here is
The service areas come from the US EPA's national boundary layer, which the agency publishes as an estimate: it disclaims the spatial accuracy of the features and names local government as the accurate source. Some of those shapes were published by a state agency, a county or the utility itself, and some EPA modelled. In Indiana, 434 of the 492 shapes drawn here are EPA models rather than published boundaries.
A boundary is not a customer list and not a legal service territory. Two systems can cover the same ground — a wholesaler and the retailer it supplies — and being inside one of these shapes does not make an address that system's ratepayer.
What is not on the map
16 Indiana systems have filings on this site and no boundary in EPA's layer, so they are absent from the map and listed here instead:
- Big Walnut
- Burnt Pines Water Association
- Carmel Clay
- Fort Wayne City Utilities - Honeysuckle
- Indiana American Water - Noblesville
- Indiana American Water - Warsaw
- Indiana Gateway Industrial Park
- Newton County Regional And Water District (fair Oaks)
- Salt Creek Services
- Silver Creek Water Corporation
- South Coast
- South Coast Conservancy District
- Stucker Fork Water
- Vermillion Rise Mega Park
- Wilfred Water Corp.
- York Town - Park One
Boundaries: US EPA Office of Research and Development, community water system service area boundaries,
retrieved 2026-09-09 and archived as data/archive/epa-cws-boundaries/2026-09-09-in.geojson. The state outline behind them is a
US Census cartographic boundary file, drawn for orientation; no figure here is derived from it. Figures: Indiana Finance Authority, as
filed by each utility — the Indiana index carries them as a table, and
each system's page carries the archived cell every figure was read from.
Report a correction.