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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 is for the main service area; customers in 2 other rate areas (Out of City (1.25), Shaw Heights (1.10)) pay different rates.

Extracted by: Audit · Claude Opus 5.5 · 10/28/2026
Source: 
5/8" Water Utility Infrastructure Fixed Charge (in-city): $15.34
Usage, 6,000 gal at Tier 1 $4.20 per 1,000 gal: $25.20
Total: $40.54/mo
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Utility profile · CO

WESTMINSTER CITY OF Water Rates

WESTMINSTER CITY OF supplies water to about 200,000 people in Westminster and Shaw Heights, Colorado. A typical household using 6,000 gallons a month pays an estimated $40.54 in the main service area, 30% below the national average.

Rates effective 2026-01-01

Updated Oct 2026

How much does water cost provided by WESTMINSTER CITY OF?

Monthly Rate

$40.54 / month
Read and audited by AI against the official rate schedule ·

This bill is for the main service area; customers in 2 other rate areas (Out of City (1.25), Shaw Heights (1.10)) pay different rates.

How the bill adds up

Service charge
5/8 meter
 $15.34
Water used
6,000 gal × $4.2/kgal
 $25.20
Total $40.54

How does WESTMINSTER 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.

LOUISVILLE CITY OF
$31.01
LOUISVILLE CITY OF
LOUISVILLE, CO · $31.01/mo · 8mi
WESTMINSTER CITY OF
$40.54
WESTMINSTER CITY OF
WESTMINSTER · $40.54/mo
NORTH TABLE MOUNTAIN WSD
$43.48
NORTH TABLE MOUNTAIN WSD
GOLDEN, CO · $43.48/mo · 9mi
SUPERIOR MD NO 1
$49.35
SUPERIOR MD NO 1
SUPERIOR, CO · $49.35/mo · 7mi
FEDERAL HEIGHTS CITY OF
$51.68
FEDERAL HEIGHTS CITY OF
FEDERAL HEIGHTS, CO · $51.68/mo · 2mi
ARVADA CITY OF
$51.92
ARVADA CITY OF
ARVADA, CO · $51.92/mo · 6mi
WHEAT RIDGE WATER DISTRICT
$55.59
WHEAT RIDGE WATER DISTRICT
WHEAT RIDGE, CO · $55.59/mo · 8mi
THORNTON CITY OF
$57.53
THORNTON CITY OF
THORNTON, CO · $57.53/mo · 6mi
BROOMFIELD CITY AND COUNTY OF
$60.59
BROOMFIELD CITY AND COUNTY OF
BROOMFIELD, CO · $60.59/mo · 5mi
NORTH WASHINGTON STREET WSD
$65.25
NORTH WASHINGTON STREET WSD
DENVER, CO · $65.25/mo · 6mi
CRESTVIEW WSD
$66.30
CRESTVIEW WSD
DENVER, CO · $66.30/mo · 4mi

Where does WESTMINSTER 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

202,078

Municipalities served

Westminster Shaw Heights

Where does WESTMINSTER CITY OF's water come from?

Supply and provider classification from EPA records.

Primary Source
Surface Water
Provider Type
Local Govt
PWSID
CO0101170

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 WESTMINSTER 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 WESTMINSTER 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 · 10/28/2026
Confidence label: Model verified

Spot an error, or have a newer rate schedule?