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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.
Municipal Department
Service area: Phoenix and the City of Phoenix Water Services service territory
Population: 1,695,000 people (Arizona Drinking Water Watch PWS ID AZ0407025; active community water system record)
Municipal Department
Service area: Tucson metropolitan service area, including Tucson and portions of unincorporated Pima County and nearby municipalities
Population: Approximately 722,000 customers in a roughly 390-square-mile service area, according to Tucson Water's official distribution-system description.
Municipal Department
Service area: Mesa
Population: 466,000 people (EPA SDWIS PWS ID AZ0407095; 2026 active CWS record).
Municipal Department
Service area: Gilbert
Population: 247,600 people (EPA SDWIS PWS ID AZ0407092; 2026 active CWS record).
Municipal Department
Service area: Chandler
Population: 247,328 people (EPA SDWIS PWS ID AZ0407090; 2026 active CWS record).
Municipal Department
Service area: Scottsdale
Population: 241,361 people (EPA SDWIS PWS ID AZ0407098; 2026 active CWS record).
Municipal Department
Service area: Tucson and regional Tucson Water service area
Population: 732,906 people (EPA SDWIS active CWS PWS AZ0410112)
Municipal Department
Service area: Glendale
Population: 234,766 people (EPA SDWIS active CWS PWS AZ0407093)
Municipal Department
Service area: Peoria
Population: 187,676 people (EPA SDWIS active CWS PWS AZ0407096)
Municipal Department
Service area: Tempe
Population: 165,000 people (EPA SDWIS active CWS PWS AZ0407100)
Private Investor-Owned Utility
Service area: Pinal Valley, including Casa Grande, Coolidge, and Stanfield
Population: 134,432
Private Investor-Owned Utility
Service area: Pinal Valley: Casa Grande, Coolidge, Stanfield and environs
Population: 134,432
Private Investor-Owned Utility
Service area: Agua Fria district, including EPCOR Arizona service territory
Population: 127,718
Private Investor-Owned Utility
Service area: Pinal Valley, including Casa Grande, Coolidge, and Stanfield
Population: 134,432
Municipal Department
Service area: Yuma
Population: 103,264
Municipal Department
Service area: Queen Creek
Population: 95,502
Private Investor-Owned Utility
Service area: San Tan Water District: Queen Creek, Florence, and San Tan Valley
Population: 87,435
Private Investor-Owned Utility
Service area: Santa Cruz County, Arizona service areas
Population: 84,000 people
Private Investor-Owned Utility
Service area: Apache Junction
Population: 62,055 people (EPA SDWA queue estimate for AZ0411004)
Municipal Department
Service area: Town of Prescott Valley
Population: 57,048 people (EPA SDWA queue estimate for AZ0413048)
Private Investor-Owned Utility
Service area: Liberty Water LPSCO service area
Population: 55,810 people (EPA SDWA queue estimate for AZ0407046)
Municipal Department
Service area: Lake Havasu City
Population: 54,610 people (EPA SDWA queue estimate for AZ0408022)
Municipal Department
Service area: City of Goodyear
Population: 50,001 people (EPA SDWA queue estimate for AZ0407094)
Private Investor-Owned Utility
Service area: Foothills Water and Sewer service area
Population: 32,425 people (EPA SDWA queue estimate for AZ0414004)
Municipal Department
Service area: Buckeye - Valencia Town Division
Population: 30,377 people (EPA SDWA queue estimate for AZ0407078)
Private Investor-Owned Utility
Service area: El Mirage / Chaparral City
Population: 26,026 people (EPA SDWIS 2026Q2 estimate for AZ0407017)
Private Investor-Owned Utility
Service area: Sun City West
Population: 25,796 people (EPA SDWIS 2026Q2 estimate for AZ0407150)
Private Investor-Owned Utility
Service area: Fort Mohave
Population: 25,000 people (EPA SDWIS 2026Q2 estimate for AZ0408063)
Private Investor-Owned Utility
Service area: Surprise / Desert Oasis
Population: 23,963 people (EPA SDWIS 2026Q2 estimate for AZ0407523)
Private Investor-Owned Utility
Service area: El Mirage / Anthem
Population: 23,826 people (EPA SDWIS 2026Q2 estimate for AZ0407504)
Public Water Authority
Service area: Wild Horse Pass
Population: 22,795 people (EPA SDWIS 2026Q2 estimate for 090400692)
Private Investor-Owned Utility
Service area: Green Valley
Population: 22,085 people (EPA SDWIS 2026Q2 estimate for AZ0410004)
Municipal Department
Service area: Nogales
Population: 22,000 people (EPA SDWIS 2026Q2 estimate for AZ0412004)
Public Water Authority
Service area: Scottsdale / Salt River Community
Population: 20,951 people (EPA SDWIS 2026Q2 estimate for 090400109)
Municipal Department
Service area: Safford
Population: 20,600 people (EPA SDWIS 2026Q2 estimate for AZ0405005)
Municipal Department
Service area: Sierra Vista / Bella Vista
Population: 20,045 people (EPA SDWIS 2026Q2 estimate for AZ0402010)
Public Water Authority
Service area: Phoenix / Pima Utilities
Population: 20,000 people (EPA SDWIS 2026Q2 estimate for AZ0407120)
Private Investor-Owned Utility
Service area: Phoenix
Population: 18,858 people (EPA SDWIS 2026Q2 estimate for AZ0407128)
Municipal Department
Service area: Davis-Monthan Air Force Base
Population: 18,640 people (EPA SDWIS 2026Q2 estimate for AZ0420549)
Private Investor-Owned Utility
Service area: Sahuarita
Population: 18,178 people (EPA SDWIS 2026Q2 estimate for AZ0410312)
Private Investor-Owned Utility
Service area: Sun Lakes
Population: 18,132 people (EPA SDWIS 2026Q2 estimate for AZ0411117)
Private Investor-Owned Utility
Service area: Sierra Vista
Population: 17,960 people (EPA SDWIS 2026Q2 estimate for AZ0412011)
Private Investor-Owned Utility
Service area: Pinal Valley service area
Population: 134432 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0411009)
Private Investor-Owned Utility
Service area: EL MIRAGE
Population: 127718 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0407695)
Municipal Department
Service area: YUMA
Population: 103264 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0414024)
Municipal Department
Service area: AVONDALE
Population: 96130 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0407088)
Private Investor-Owned Utility
Service area: QUEEN CREEK
Population: 95502 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0407033)
Private Investor-Owned Utility
Service area: SAN TAN VALLEY
Population: 87435 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0411128)
Private Investor-Owned Utility
Service area: MARICOPA
Population: 84000 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0411131)
Municipal Department
Service area: FLAGSTAFF
Population: 79796 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0403008)
Private Investor-Owned Utility
Service area: TUCSON
Population: 45570 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0410076)
Municipal Department
Service area: KINGMAN
Population: 45000 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0408020)
Municipal Department
Service area: ORO VALLEY
Population: 42316 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0410164)
Municipal Department
Service area: PRESCOTT
Population: 42217 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0413045)
Municipal Department
Service area: SURPRISE
Population: 40007 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0407500)
Municipal Department
Service area: EL MIRAGE
Population: 39884 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0407091)
Municipal Department
Service area: SAN LUIS
Population: 39705 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0414005)
Private Investor-Owned Utility
Service area: EL MIRAGE
Population: 38016 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0407099)
Arizona directory notes
This state hub brings together 58 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.