Early access · Rate data is actively expanding · Verify current rates with your utility
whatwatercosts.org

Have a more current rate document? Submit the URL and we'll update our data.

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 · 10/27/2026
Source: 
Base charge for a 5/8" meter is $46.86 every two months, including 4 CCF: $23.43/mo
Usage of CCF 5–14 at $3.69 plus 2.042 CCF at $4.46 per two months: $23.00/mo
Total: $46.43/mo
About our methodology ↗

Leaving whatwatercosts.org

You're about to open the source document we used to extract this utility's rate data.

Open ↗
← Back

Utility profile · WA

ALDERWOOD WATER DISTRICT Water Rates

ALDERWOOD WATER DISTRICT supplies water to about 250,000 people in Bothell, Martha Lake, and 13 other places in Washington. A typical household using 6,000 gallons a month pays an estimated $46.43, 20% below the national average.

Rates effective 2026-01-01

Updated Oct 2026

How much does water cost provided by ALDERWOOD WATER DISTRICT?

Monthly Rate

$46.43 / month
Read and audited by AI against the official rate schedule

How the bill adds up

Minimum charge
includes some water
 $23.43
Water used
10 ccf × $3.69/ccf ÷ 2 (billed every 2 months)
 $18.45
Water used
2.043 ccf × $4.46/ccf ÷ 2 (billed every 2 months)
 $4.55
Total $46.43

How does ALDERWOOD WATER DISTRICT's water cost compare to its regional neighbors?

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

LYNNWOOD CITY OF
$46.23
LYNNWOOD CITY OF
Lynnwood, WA · $46.23/mo · 3mi
ALDERWOOD WATER DISTRICT
$46.43
ALDERWOOD WATER DISTRICT
Lynnwood · $46.43/mo
NORTHSHORE UTILITY DISTRICT
$52.04
NORTHSHORE UTILITY DISTRICT
Kenmore, WA · $52.04/mo · 6mi
OLYMPIC VIEW WATER & SEWER DISTRICT
$55.37
OLYMPIC VIEW WATER & SEWER DISTRICT
Edmonds, WA · $55.37/mo · 7mi
SILVER LAKE WATER & SEWER DISTRICT
$59.79
SILVER LAKE WATER & SEWER DISTRICT
Bothell, WA · $59.79/mo · 4mi
EVERETT PUBLIC WORKS DEPT. CITY OF
$60.03
EVERETT PUBLIC WORKS DEPT. CITY OF
Everett, WA · $60.03/mo · 9mi
CROSS VALLEY WATER DISTRICT
$76.00
CROSS VALLEY WATER DISTRICT
Snohomish, WA · $76.00/mo · 6mi
North City Water District
$77.69
North City Water District
Shoreline, WA · $77.69/mo · 6mi
SNOHOMISH CITY OF
$78.10
SNOHOMISH CITY OF
Snohomish, WA · $78.10/mo · 9mi
MOUNTLAKE TERRACE CITY OF
$87.85
MOUNTLAKE TERRACE CITY OF
Mountlake Terrace, WA · $87.85/mo · 4mi
WOODINVILLE WATER DISTRICT
$90.38
WOODINVILLE WATER DISTRICT
Woodinville, WA · $90.38/mo · 9mi

Where does ALDERWOOD WATER DISTRICT 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

245,715

Municipalities served

Bothell Martha Lake Bothell West Mill Creek East North Lynnwood Picnic Point Mill Creek Brier Bothell East Lake Stickney Maltby Alderwood Manor Mukilteo Larch Way Meadowdale

Where does ALDERWOOD WATER DISTRICT's water come from?

Supply and provider classification from EPA records.

Primary Source
SWP
Provider Type
Local Govt
PWSID
WA5301300

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 ALDERWOOD WATER DISTRICT'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 ALDERWOOD WATER DISTRICT'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 · 10/27/2026
Confidence label: Model verified

Spot an error, or have a newer rate schedule?