Municipal Department
City of Tucson Water Department (Tucson Water)
Serving Tucson metropolitan service area, including Tucson and portions of unincorporated Pima County and nearby municipalities
Population served
Approximately 722,000 customers in a roughly 390-square-mile service area, according to Tucson Water's official distribution-system description.
State system code
FIPS 04
Billing frequency
Monthly. Tucson Water describes a monthly service charge, monthly water-use blocks, monthly water bill examples, and a due date 20 days after the account is billed.
Provider briefing
How this utility’s billing works
City of Tucson Water Department (Tucson Water) operates as a municipal department serving Tucson metropolitan service area, including Tucson and portions of unincorporated Pima County and nearby municipalities. Customers should use the provider’s current account-specific bill and official customer-service instructions as the final authority for deadlines, balances, and service requests.
The published water-rate framework is described as Increasing block tiers with a fixed monthly meter charge and per-CCF surcharges. For FY2027 rates effective July 6, 2026, a common 5/8-inch incorporated residential meter has a $21.72 monthly service charge; single-family usage is tiered at $2.58/CCF for 1-7 CCF, $4.70 for 8-15, $9.23 for 16-30, and $13.65 above 30 CCF. Potable accounts also pay a $1.25/CCF water-supply/CAP fee and a $0.15/CCF conservation fee; the $0.15/CCF green-stormwater fee applies inside Tucson city limits. Taxes vary by municipality. Residential tiers are fixed year-round; commercial and industrial classes have separate seasonal surcharges.. Bills are generated monthly. tucson water describes a monthly service charge, monthly water-use blocks, monthly water bill examples, and a due date 20 days after the account is billed., and a typical residential cost reference is Approximately $49-$50 per month for about 5,000 gallons (roughly 6.68 CCF) of incorporated single-family potable water on a 5/8-inch meter under the FY2027 schedule effective July 6, 2026, before local taxes and separate sewer/garbage charges. This estimate applies the $21.72 service charge plus approximately 6.68 CCF at the first-tier rate and published CAP/water-supply, conservation, and Tucson GSI fees; actual totals vary by municipality, meter size, taxes, and usage. Tucson's bill guide reports $47.81 at 7 CCF under the prior displayed schedule.. These descriptions are useful planning benchmarks; actual charges can change with meter size, usage, sewer averaging, local taxes, drought stages, or account-specific fees.
Wastewater and sewer calculation
Pima County Wastewater Reclamation calculates the monthly sewer charge using the customer's average water use from the December, January, and February billing periods, because those months generally have less outdoor irrigation. Tucson Water notes that its billing period reflects the prior 30 days, so a December statement can include some November use; Pima County offers an appeal process for customers who believe the winter-average calculation is unrepresentative. Sewer charges are included on the combined utility-services statement but are administered by Pima County, not Tucson Water.
Meter and infrastructure notes
Tucson Water is transitioning from traditional monthly meter readings to advanced metering infrastructure (AMI). The City planned an initial Spring 2026 AMI installation for approximately 45,000 commercial, industrial, reclaimed, construction, and City-owned meters, followed by residential installation from 2027 through 2029. AMI meters remotely transmit hourly usage data, enabling high-use notifications, alerts, and online usage monitoring; the customer portal for AMI data is planned for early 2027. Until each location is converted, billing remains based on the existing meter-reading cycle, and the City says customers receive mailed notices and door hangers before installation.
Emergency water support
Report a leak or water emergency
(520) 791-4133 for water emergencies from 6 a.m.-9 p.m.; call 311 after hours for broken water mains, pipelines, and other emergency water issues. Tucson Water also lists WaterLeaks@tucsonaz.gov for non-emergency leaks and 520-791-5945 for water-quality or pressure concerns.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Tucson metropolitan service area, including Tucson and portions of unincorporated Pima County and nearby municipalities
City of Tucson Water Department (Tucson Water) is listed here as a municipal department. The profile separates account actions—such as paying a bill or requesting service—from explanatory material about rates, meters, wastewater, leaks, and delinquency.
Because utility rules can vary by account class, meter size, service address, billing date, and local ordinance, treat the published bill and current provider website as the final authority. Use this profile to locate the correct channel and prepare better questions for customer service.
If your issue is urgent, start with the provider’s emergency number or official payment route rather than waiting for an email response. Keep a written record of calls, confirmation numbers, notice dates, and documents you submit.