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State utility hub
Browse the indexed community water systems in this state. Each profile brings the provider’s payment routes and household protection policies into a single, practical guide.
Private Investor-Owned Utility
Service area: Boise metropolitan service area and other Veolia Water Idaho service territories
Population: Approximately 265,000 Boise-area residents are reported for the Veolia Water Idaho community system; the company also serves other Idaho service territories under Idaho Public Utilities Commission tariffs.
Private Investor-Owned Utility
Service area: Boise and Veolia Water Idaho service areas
Population: 264,978 people (EPA SDWIS active CWS PWS ID4010016)
Municipal Department
Service area: Meridian, Idaho
Population: 147,340 people (EPA SDWIS active CWS PWS ID4010097)
Municipal Department
Service area: Caldwell
Population: Approximately 74,000 people in the Caldwell community-water-system service area; the EPA queue population is 74,000.
Municipal Department
Service area: City of Idaho Falls municipal water and wastewater service area
Population: 69,450 people (EPA SDWIS queue estimate for ID7100039)
Municipal Department
Service area: City of Pocatello
Population: 58,231 people (EPA SDWA queue estimate for ID6030043)
Municipal Department
Service area: City of Twin Falls
Population: 56,121 people (EPA SDWA queue estimate for ID5420058)
Municipal Department
Service area: City of Coeur d'Alene
Population: 54,115 people (EPA SDWA queue estimate for ID1280053)
Municipal Department
Service area: Kuna
Population: 32,038 people (EPA SDWA queue estimate for ID4010085)
Municipal Department
Service area: Moscow
Population: 26,000 people (EPA SDWIS 2026Q2 estimate for ID2290023)
Private Investor-Owned Utility
Service area: Idaho Falls
Population: 22,650 people (EPA SDWIS 2026Q2 estimate for ID7100030)
Municipal Department
Service area: Post Falls
Population: 20,285 people (EPA SDWIS 2026Q2 estimate for ID1280147)
Public Water Authority
Service area: Lewiston
Population: 20,000 people (EPA SDWIS 2026Q2 estimate for ID2350015)
Municipal Department
Service area: NAMPA
Population: 100200 people (EPA SDWIS 2026Q2 active CWS estimate for ID3140080)
Municipal Department
Service area: CALDWELL
Population: 74000 people (EPA SDWIS 2026Q2 active CWS estimate for ID3140013)
Municipal Department
Service area: REXBURG
Population: 40695 people (EPA SDWIS 2026Q2 active CWS estimate for ID7330022)
Idaho directory notes
This state hub brings together 16 indexed community water systems, from city departments and public authorities to investor-owned systems and smaller regional providers. A service area may cross municipal boundaries, so use the provider name and service address on your bill when choosing a profile.
The most important distinction is between a directory listing and an official account channel. Water Ledger provides a structured starting point; the utility’s own payment portal, published rate schedule, customer-service office, and mailed notice control your account. Compare the payment route, billing frequency, emergency number, and customer-protection notes before relying on a page for a time-sensitive decision.
If you are helping a household with a high bill, leak, or delinquency notice, open the utility profile and review the payment, shut-off, and leak-adjustment guides together. Keep the bill, account number, confirmation receipts, repair records, and notice dates available when speaking with the provider.