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State directory · dataset 2026.08

Water utilities serving Arizona

Browse 58 indexed systems and see how frequently the directory identified public payment, fee, leak, assistance, and emergency information. Coverage describes the research record—not utility performance.

Arizona research snapshot

Public detail found in indexed records

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62%

Online portal identified

36 of 58

12%

Public fee detail

7 of 58

31%

Leak policy detail

18 of 58

26%

Assistance detail

15 of 58

22%

Emergency route

13 of 58

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.

Billing fields: 7 of 7 documented
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Municipal Department

City of Tucson Water

AZ0410112

Service area: Tucson and regional Tucson Water service area

Population: 732,906 people (EPA SDWIS active CWS PWS AZ0410112)

Billing fields: 3 of 7 documented
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Private Investor-Owned Utility

Liberty Water LPSCO

AZ0407046

Service area: Liberty Water LPSCO service area

Population: 55,810 people (EPA SDWA queue estimate for AZ0407046)

Billing fields: 1 of 7 documented
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Private Investor-Owned Utility

EPCOR - AGUA FRIA

AZ0407695

Service area: EL MIRAGE

Population: 127718 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0407695)

Billing fields: 4 of 7 documented
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Municipal Department

CITY OF YUMA

AZ0414024

Service area: YUMA

Population: 103264 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0414024)

Billing fields: 0 of 7 documented
Open research profile

Private Investor-Owned Utility

EPCOR - SAN TAN

AZ0411128

Service area: SAN TAN VALLEY

Population: 87435 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0411128)

Billing fields: 0 of 7 documented
Open research profile

Private Investor-Owned Utility

METROPOLITAN DWID

AZ0410076

Service area: TUCSON

Population: 45570 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0410076)

Billing fields: 0 of 7 documented
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Private Investor-Owned Utility

EPCOR - SUN CITY

AZ0407099

Service area: EL MIRAGE

Population: 38016 people (EPA SDWIS 2026Q2 active CWS estimate for AZ0407099)

Billing fields: 0 of 7 documented
Open research profile

Arizona directory notes

How to compare water utilities in Arizona

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. US Water Bill Pay 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.