Independent U.S. water utility directory · 2026 edition
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State utility hub

Water utilities serving Washington

Browse the indexed community water systems in this state. Each profile brings the provider’s payment routes and household protection policies into a single, practical guide.

107 systems indexed2026 directory
53

Service area: Seattle and nearby communities served by Seattle Public Utilities

Population: Seattle Public Utilities' official water-system page says its regional supply provides safe drinking water to approximately 1.6 million people in Seattle and nearby communities. The retail utility also bills Seattle water, sewer, drainage, and solid-waste customers; the 1.6-million figure is the regional drinking-water population rather than a claim that every person receives an SPU retail bill.

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53

Service area: Tacoma, Pierce and King counties, and wholesale municipal water suppliers

Population: More than 300,000 people in Tacoma, Pierce and King counties, plus several municipal water suppliers, according to Tacoma Water’s current customer information.

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53

Service area: Renton, Kent, Maple Valley, and Soos Creek Water & Sewer District service area

Population: 74,172 people served according to the EPA queue; Soos Creek reports more than 34,000 sewer connections and serves the southeast King County district.

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Private Investor-Owned Utility

JBLM Lewis Water System

53

Service area: Joint Base Lewis-McChord Lewis service area, including Fort Lewis and North Fort Lewis

Population: 35,414 people (EPA SDWA queue estimate for WA5326050); JBLM’s official drinking-water page describes the broader installation system as serving over 55,000 people.

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Washington directory notes

How to compare water utilities in Washington

This state hub brings together 107 indexed community water systems, from city departments and public authorities to investor-owned systems and smaller regional providers. A service area may cross municipal boundaries, so use the provider name and service address on your bill when choosing a profile.

The most important distinction is between a directory listing and an official account channel. Water Ledger provides a structured starting point; the utility’s own payment portal, published rate schedule, customer-service office, and mailed notice control your account. Compare the payment route, billing frequency, emergency number, and customer-protection notes before relying on a page for a time-sensitive decision.

If you are helping a household with a high bill, leak, or delinquency notice, open the utility profile and review the payment, shut-off, and leak-adjustment guides together. Keep the bill, account number, confirmation receipts, repair records, and notice dates available when speaking with the provider.