Hydrohistorian
Water providers in Arapahoe County, Colorado
Who is my water provider?
Type a Colorado address, or use your location. This names the community water systems whose EPA service-area boundary contains that point.
Blue is a boundary a utility or county traced; amber is one EPA modelled from census places. Click an area for the system. Systems with no boundary on file are in the table but not on the map.
Towns in Arapahoe County
Each names the systems whose service area covers it.
- Acres Green
- Aetna Estates
- Aurora
- Bow Mar
- Byers
- Centennial
- Columbine
- Columbine Valley
- Dakota Ridge
- Deer Trail
- Dove Valley
- Englewood
- Foxfield
- Greenwood Village
- Ken Caryl
- Littleton
- Lone Tree
- Sheridan
Every community water system in Arapahoe County
Common questions
How many water providers are in Arapahoe County, Colorado?
27 community water systems serve Arapahoe County, Colorado. The largest is City of Aurora, which reports serving 533,407 people.
Who is my water provider in Arapahoe County?
It depends on your address: 27 community systems serve parts of Arapahoe County. Enter an address in the lookup on this page and it will name the systems whose EPA service-area boundary contains that point.
Why is a system in Arapahoe County missing from the map?
7 of the 27 systems here have no service-area boundary in EPA's file, so they cannot be drawn. They are still in the table on this page, with their source and compliance record.
Nearby counties
Systems and counties from EPA SDWIS federal reporting, fetched 2026-09-08; boundaries from EPA's Community Water System Service Area Boundaries (v3, 2026). A county row here is the county SDWIS files for the system, which is where it serves customers, not necessarily where its intakes are. Report a problem →