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How we calculated this

Read by an AI agent (a large language model) from the utility's official rate schedule, then audited by a second model against the same schedule. This bill uses inside-city rates; customers outside the city pay different rates.

Extracted by: Audit · Claude Opus 5.5 · 10/29/2026
Source: 
Monthly water service fee, inside city: $16.975
Usage: 8.021 CCF at $1.932 = $15.50
Total: $32.47/mo
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Utility profile · WA

KENNEWICK CITY OF Water Rates

KENNEWICK CITY OF supplies water to about 120,000 people in Kennewick, Washington. A typical household using 6,000 gallons a month pays an estimated $32.47 in the main service area, 44% below the national average.

Rates effective 2026-01-01

Updated Oct 2026

How much does water cost provided by KENNEWICK CITY OF?

Monthly Rate

$32.47 / month
Read and audited by AI against the official rate schedule ·

This bill uses inside-city rates; customers outside the city pay different rates.

How the bill adds up

Service charge $16.98
Water used
802 cf × $1.932/ccf
 $15.50
Total $32.47

How does KENNEWICK 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.

BOARDMAN, CITY OF
$19.50
BOARDMAN, CITY OF
BOARDMAN, OR · $19.50/mo · 34mi
KENNEWICK CITY OF
$32.47
KENNEWICK CITY OF
Kennewick · $32.47/mo
SUNNYSIDE CITY OF
$33.92
SUNNYSIDE CITY OF
Sunnyside, WA · $33.92/mo · 40mi
CONNELL CITY OF
$34.10
CONNELL CITY OF
Connell, WA · $34.10/mo · 36mi
GRANDVIEW CITY OF
$39.28
GRANDVIEW CITY OF
Grandview, WA · $39.28/mo · 35mi
HERMISTON, CITY OF
$40.42
HERMISTON, CITY OF
HERMISTON, OR · $40.42/mo · 25mi
PASCO WATER DEPARTMENT
$42.31
PASCO WATER DEPARTMENT
Pasco, WA · $42.31/mo · 5mi
UMATILLA, CITY OF
$42.57
UMATILLA, CITY OF
UMATILLA, OR · $42.57/mo · 20mi
WEST RICHLAND CITY OF
$51.47
WEST RICHLAND CITY OF
West Richland, WA · $51.47/mo · 13mi
COLLEGE PLACE WATER DEPT
$54.91
COLLEGE PLACE WATER DEPT
College Place, WA · $54.91/mo · 39mi
PENDLETON, CITY OF
$62.16
PENDLETON, CITY OF
PENDLETON, OR · $62.16/mo · 41mi

Where does KENNEWICK 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

118,164

Municipalities served

Kennewick

Where does KENNEWICK CITY OF's water come from?

Supply and provider classification from EPA records.

Primary Source
Surface Water
Provider Type
Local Govt
PWSID
WA5338100

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 KENNEWICK CITY OF's customers?

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

Water Burden

0.5% 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 KENNEWICK 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: Audit · Claude Opus 5.5 · 10/29/2026
Confidence label: Model verified

Spot an error, or have a newer rate schedule?