When visiting the water department to start or transfer service, bring a government-issued photo ID, your Social Security number, and documentation of your new address such as a lease or closing documents. King County Water Department is located at 4029 Northeast 178th Street, Seattle, WA. Most departments handle walk-in customers during regular business hours, though calling ahead can reduce wait times during peak periods at the beginning and end of each month.
King County Water Department Contact Information
Address, Phone Number, and Hours for an Water Departments in Seattle, Washington.
| Name | King County Water Department |
| Address | 4029 Northeast 178th Street, Seattle WA 98155 Map |
| Phone | (206) 365-3211 |
| Website | |
| Hours |
Map of King County Water Department
About King County Water Department
The King County Water Department, located in Seattle, WA, is an utility company that operates the public water system. The Water Department, or Water Utility, provides potable tap water to residential customers, businesses, and others in King County. Seattle residents can contact the Water Department to start or stop water services, for drinking water reports, or for billing and payment information.
- Starting, stopping, or transferring water service through King County Water Department
- Billing disputes, high-usage alerts, and meter accuracy concerns
- Reporting water main breaks, service outages, or water quality issues
- Annual Consumer Confidence Report access and drinking water quality testing results