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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.
Base service charge, 3/4" meter: $21.35 Peak first 5 CCF at $5.98: $29.90 Peak next 3.021 CCF at $7.39: $22.33 Total: $73.58/mo
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Utility profile · WA
SEATTLE PUBLIC UTILITIES supplies water to about 1.2 million people in Seattle, Shoreline, and Burien, Washington. A typical household using 6,000 gallons a month pays an estimated $73.58, 26% above the national average.
Rates effective 2026-01-01
Updated Oct 2026
| Service charge | $21.35 |
| Water used 10 ccf × $5.98/ccf ÷ 2 (billed every 2 months) |
$29.90 |
| Water used 6.043 ccf × $7.39/ccf ÷ 2 (billed every 2 months) |
$22.33 |
| Total | $73.58 |
Monthly cost (6k gal) vs up to 10 nearest utilities with published rates. Click to navigate.
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.
Supply and provider classification from EPA records.
Named intake/well source and interconnections (who this utility buys from or sells to) aren't captured yet — tracked separately for a future update.
Annual bill as a share of median household income in the service area.
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.
This rate was extracted from SEATTLE PUBLIC UTILITIES'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.
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