Mason PUD 3 provides electricity to nearly 33,000 customers in most of Mason County and small portions of Kitsap, Grays Harbor, and Pierce Counties. PUD 3 owns and operates 11 substations and has nearly 1,800 miles of overhead and underground lines to serve its customers (1,074 miles underground, 686 miles overhead). The PUD also provides wholesale telecommunications services through a fiber optic network.
The PUD 3 service area covers nearly 600 square miles, most of which is in Mason County. Electric service is also provided to small areas of south Kitsap, a small portion of Pierce, and east Grays Harbor Counties.