ProFix Editorial Team

Utility Cooperatives and Municipal Services in Washington

Use this Washington utility map before a job changes a meter, service mast, service drop, gas appliance, water line, trench, driveway, sewer lateral, or exterior structure

Washington6 utilitiesUpdated 2026-06-09

Utility contacts to verify before work

Investor-owned utility

Puget Sound Energy

Open utility
Service area
Investor-owned electric and gas service in western Washington, including Bellevue, Bellingham, Olympia-area communities, Kitsap County, and many Puget Sound suburbs.
Contractor / service coordination
https://www.pse.com/
811 / call before you dig
https://digsafewashington.com/

Municipal utility

Seattle City Light

Open utility
Service area
Municipal electric utility serving Seattle and nearby Shoreline, Lake Forest Park, Tukwila, Burien, and unincorporated King County areas.
Contractor / service coordination
https://www.seattle.gov/city-light
811 / call before you dig
https://digsafewashington.com/

Municipal utility

Snohomish County PUD

Open utility
Service area
Public utility district providing electric service to Snohomish County and Camano Island, with water service in selected county systems.
Contractor / service coordination
https://www.snopud.com/
811 / call before you dig
https://digsafewashington.com/

Investor-owned utility

Avista Utilities Washington

Open utility
Service area
Investor-owned electric and natural gas service in eastern Washington, including Spokane, Spokane Valley, Pullman-area communities, and nearby counties.
Contractor / service coordination
https://www.myavista.com/
811 / call before you dig
https://digsafewashington.com/

Gas utility

Cascade Natural Gas

Open utility
Service area
Natural gas distribution utility serving Washington communities including Bellingham, Bremerton-area towns, Yakima, Walla Walla, Longview, and Aberdeen.
Contractor / service coordination
https://www.cngc.com/
811 / call before you dig
https://digsafewashington.com/

Water utility

Tacoma Public Utilities

Open utility
Service area
Public utility serving Tacoma with electric, water, and rail utility services and regional water connections in Pierce County.
Contractor / service coordination
https://www.mytpu.org/
811 / call before you dig
https://digsafewashington.com/

When to call which utility

Use this Washington utility map before a job changes a meter, service mast, service drop, gas appliance, water line, trench, driveway, sewer lateral, or exterior structure. For electric outages, meter pulls, temporary power, service upgrades, underground-to-overhead changes, or a panel job that requires a utility disconnect, start with the electric utility assigned to the address: Puget Sound Energy, Seattle City Light, Snohomish County PUD and Avista Utilities Washington. Rural addresses often sit in cooperative territory even when the nearest city is served by an investor-owned or municipal utility, so verify the premise before an electrician schedules the cutover. For natural-gas odors, hit lines, meter relocations, pressure questions, or appliance conversions, stop work and call the gas utility or 911 from a safe distance when there is an immediate leak; use Cascade Natural Gas for the listed gas distribution territory. Water utilities such as Tacoma Public Utilities coordinate taps, meters, backflow requirements, main shutoffs, hydrant use, and service-line ownership questions. Municipal utilities may bundle electric, gas, water, wastewater, and stormwater, so one counter can control several approvals. Before any excavation, boring, fence post, sign, tree planting, drainage, sewer, or water-service work, file the 811 ticket through https://digsafewashington.com/ and wait for marks or positive response. The utility marks public facilities; the contractor still needs private locating for owner-installed lighting, irrigation, propane, septic, yard drains, and lines beyond the meter.

811 comes before utility-side work

File a locate request before trenching, boring, planting, fencing, drainage work, sewer work, or water-service changes. Utility marks do not replace private locating on owner-installed lines.

Source: ProFix Editorial Team. Last updated 2026-06-09. Utility territories can change at parcel boundaries; verify the premise address with the utility and local 811 system before scheduling work.

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