Washington Electricity Prices

Washington sits mid-pack — 14.95¢ per kilowatt-hour in May 2026, 37th-highest of 51 and 23.0% below the national benchmark.

At Washington's May 2026 average of 14.95¢/kWh, 10,500 kWh of annual use works out to $1,570 a year — around $131 a month. Running the same 10,500 kWh calculation at the May 2026 national benchmark rate gives $2,038 — a $468 gap between the two published averages, less for Washington, not a bill either way.

Over the full EIA series the Washington jurisdiction average has risen 202% since January 2001, from 4.95¢ to 14.95¢ in May 2026 — a compound 4.5% per year. The path has been unusually smooth — Washington is among the steadiest third of jurisdictions month to month.

Yes. The May 2026 average of 14.95¢ per kilowatt-hour is the highest monthly figure Washington has recorded across the EIA series, which begins in January 2001. The previous floor for the jurisdiction was 4.95¢ in January 2001.

September. Measured over the 25 complete calendar years the EIA series covers for Washington, 2001 through 2025, September runs highest relative to its own year and January runs lowest — a swing of roughly 6.8 percentage points.

Among Washington and its land-border neighbours in May 2026, Idaho posts the lowest average at 12.35¢ and Alaska the highest at 28.23¢. Washington ranks 2nd of 4 in the group, at 14.95¢.

Almost certainly not exactly, and this is the one caveat that governs every figure on this page. The published value is the EIA residential average across every utility and residential rate class in Washington for May 2026 — a benchmark, never a billed amount. Even the jurisdiction figure is not one number — across the trailing year it moved between 12.96¢ in June 2025 and 14.95¢ in May 2026. Your own rate depends on your utility, tariff, usage tier, time-of-use schedule, and fixed monthly charges, none of which this index models. Read your bill for the rate that applies to you.