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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.

Extracted by: Audit · Claude Opus 5.5 · 11/07/2026
Source: 
Quarterly meter fee for the smaller meter, $38, is $12.67/mo
Usage: 18,000 gal per quarter; first 15,000 at $3.04 per 1,000 = $45.60, next 3,000 at $3.64 = $10.92, which is $18.84/mo
Total: $31.51/mo
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Utility profile · MA

YARMOUTH WATER DEPARTMENT Water Rates

YARMOUTH WATER DEPARTMENT supplies water to about 39,000 people in South Yarmouth, West Yarmouth, and Yarmouth Port, Massachusetts. A typical household using 6,000 gallons a month pays an estimated $31.51, 46% below the national average.

Rates effective 2026-07-01

Updated Nov 2026

How much does water cost provided by YARMOUTH WATER DEPARTMENT?

Monthly Rate

$31.51 / month
Read and audited by AI against the official rate schedule

How the bill adds up

Total $31.51

How does YARMOUTH WATER DEPARTMENT's water cost compare to its regional neighbors?

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

MASHPEE WATER DISTRICT
$18.08
MASHPEE WATER DISTRICT
MASHPEE, MA · $18.08/mo · 14mi
COTUIT FIRE DISTRICT WATER DEPARTMENT
$24.67
COTUIT FIRE DISTRICT WATER DEPARTMENT
COTUIT, MA · $24.67/mo · 12mi
BUZZARDS BAY WATER DISTRICT
$27.86
BUZZARDS BAY WATER DISTRICT
BOURNE, MA · $27.86/mo · 20mi
BOURNE WATER DISTRICT
$29.17
BOURNE WATER DISTRICT
POCASSET, MA · $29.17/mo · 20mi
YARMOUTH WATER DEPARTMENT
$31.51
YARMOUTH WATER DEPARTMENT
WEST YARMOUTH · $31.51/mo
NORTH SAGAMORE WATER DISTRICT
$33.03
NORTH SAGAMORE WATER DISTRICT
SAGAMORE BEACH, MA · $33.03/mo · 18mi
DENNIS WATER DISTRICT
$36.00
DENNIS WATER DISTRICT
SOUTH DENNIS, MA · $36.00/mo · 4mi
ONSET FIRE DISTRICTWATER DEPT.
$41.51
ONSET FIRE DISTRICTWATER DEPT.
ONSET, MA · $41.51/mo · 22mi
TOWN OF EASTHAM
$49.46
TOWN OF EASTHAM
EASTHAM, MA · $49.46/mo · 16mi
ORLEANS WATER DEPARTMENT
$50.43
ORLEANS WATER DEPARTMENT
ORLEANS, MA · $50.43/mo · 14mi
BARNSTABLE FIRE DISTRICT
$75.30
BARNSTABLE FIRE DISTRICT
BARNSTABLE, MA · $75.30/mo · 4mi

Where does YARMOUTH WATER DEPARTMENT 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

38,900

Municipalities served

South Yarmouth West Yarmouth Yarmouth Port

Where does YARMOUTH WATER DEPARTMENT's water come from?

Supply and provider classification from EPA records.

Primary Source
Groundwater
Provider Type
Local Govt
PWSID
MA4351000

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 YARMOUTH WATER DEPARTMENT's customers?

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

Water Burden

0.4% 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 YARMOUTH WATER DEPARTMENT'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 · 11/07/2026
Confidence label: Model verified

Spot an error, or have a newer rate schedule?