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How we calculated this
Extracted by: codex/gpt-5.6-luna · 08/23/2026
Source:
Quality checks: 9/9 passed
  • Monotonic pricing
  • Price range plausible
  • Fixed charge range
  • No zero tier prices
  • Tier count (1–8)
  • Tier boundary scale
  • Residential customer class
  • Effective date parseable
  • Plausible for AZ
Fixed: $21.72/mo
Volume: 6,000 gal = 8.02 CCF
  0–7 CCF  ×  $2.5800/CCF  =  $18.06
  7–8.02 CCF  ×  $4.7000/CCF  =  $4.80
Total: $21.72 + $22.86 = $44.58/mo

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Utility profile · AZ

TUCSON CITY OF Water Rates

TUCSON CITY OF serves 732,906 people in Tucson, Catalina Foothills, and 4 more places in AZ. The monthly residential water bill at 6,000 gallons is $44.58, 16% below the national average of $53.13.

Updated Aug 2026

Beta. Data is actively being expanded. Results may vary. if something looks off.

How much does water cost provided by TUCSON CITY OF?

Standardized to a 6,000 gallon/month residential bill on a 5/8"–3/4" meter.

Monthly Rate

$44.58 / 6k gal
-16% vs natl avg

Volumetric Rate

$7.43 / 1k gal

How does TUCSON CITY OF's water cost compare to its regional neighbors?

Monthly cost (6k gal) vs up to 10 nearest utilities with published rates. Click to navigate.

Where does TUCSON CITY OF provide service?

Population served and the municipalities covered by this utility's service area.

Boundaries from the EPA Water System Service Areas dataset. Not all utilities have mapped boundaries.

Population Served

732,906

Where does TUCSON CITY OF's water come from?

Supply and provider classification from EPA records.

Primary Source
Groundwater
Provider Type
Local Govt
PWSID
AZ0410112

Named intake/well source and interconnections (who this utility buys from or sells to) aren't captured yet — tracked separately for a future update.

Is water affordable for TUCSON CITY OF's customers?

Annual bill as a share of median household income in the service area.

Water Burden

0.8% of income (annual)
of median area income · affordability threshold: 2%

We don't yet systematically track whether a utility offers income-based or sliding-scale pricing separate from its standard rates — tracked separately for a future update.

Where did this data come from?

This rate was extracted from TUCSON CITY OF's published tariff document by an AI research agent, then checked against a validation checklist before publishing. See the full methodology for how every utility on this site is sourced and scored.

Provenance

Extracted by: codex/gpt-5.6-luna · 08/23/2026
Confidence label: Model estimate

Quality checks: 9/9 passed

  • Monotonic pricing
  • Price range plausible
  • Fixed charge range
  • No zero tier prices
  • Tier count (1–8)
  • Tier boundary scale
  • Residential customer class
  • Effective date parseable
  • Plausible for AZ