Residential Rates and Charges

toddler drinking from fountain

The current water rates and charges were adopted by the Tucson's Mayor and Council on May 22, 2018, and became effective July 2, 2018.

Additional Rates Information:

Single-Family Class

Per 100 cubic feet (Ccf)
(1 Ccf = 748 Gallons)

Usage (Ccf) Average Monthly Bill
0 $15.00
5 $28.30
8 (overall average)      $37.97
9 $42.32
10 $46.67
16 $77.16
31 $212.66
45 $396.62
60 $593.72

All amounts shown are before tax. Taxes billed are turned over to the taxing authority and are not revenues of Tucson Water. Current tax rates are: 2.6%, City of Tucson; 6.1%, State of Arizona exiting Tucson Water website; 4.5%, Town of Marana exiting Tucson Water website; 4.0%, Town of Oro Valley exiting Tucson Water website 4.5%, City of South Tucson exiting Tucson Water website.

About Single Family

  • Most of Tucson Water's customers are in the single-family class.
  • Single-family customers tend to be low-volume water users.
  • About 80% of customers in this class use 10 Ccf (7,480 gallons) or less of water on average monthly.

Usage Charges

Per 100 cubic feet (Ccf)
(1 Ccf = 748 Gallons)

Customer Class / Charge Categories Charge per Ccf
Residential Block Rates
Single Family
1 – 7 Ccf $1.87
8 – 15 Ccf $3.56
16 – 30 Ccf $7.95
Over 30 Ccf $12.35
Duplex-Triplex
1 – 10 Ccf $1.87
11 – 20 Ccf $3.56
21 – 35 Ccf $7.95
Over 35 Ccf $12.35

Guide to Usage Charges

Inclining Block Rates

As the water volume usage block increases, the unit price or rate for the block increases.

Monthly Service Charge

Flat rate paid by customer, regardless of the amount of water used.

Meter Size Rates
5/8 inch * $15.00 **
3/4 inch $20.23
1 inch $30.70
1-1/2 inch $56.86
2 inch $88.25
2-1/2 inch $130.11
3 inch $171.97
4 inch $292.32
6 inch $593.71
8 inch $894.05
10 inch $1,364.97
12 inch $2,254.49

Guide to Monthly Service Charge

* Size serving most single-family homes.

** Service charge increased $1.47 per month on July 2, 2018 (proportionately larger increases apply for larger meters).

Recovers the costs of:

  • Meter reading.
  • Meter maintenance and replacement.
  • Billing.
  • A portion of distribution system (pipeline) maintenance.
  • A portion of the capital costs associated with CAP water and public fire protection.

Other Charges

Per 100 cubic feet (Ccf)
(1 Ccf = 748 Gallons)

Charge Charge per Ccf
Central Arizona Project (CAP) $0.69
Conservation Fee $0.10

Guide to Other Charges

CAP charge

Pays charges assessed by (Central Arizona Water Conservation District ) for City's allocation of CAP water

Conservation Fee

Dedicated funding to recover Utility's conservation efforts
(first effective July 7, 2008)