City of Seattle Electricity Rates and Average Bill (Washington)
Data through May 2026 (the latest month EIA has published) · Updated August 14, 2026
As of May 2026, City of Seattle's residential customers in Washington paid an average effective rate of 15.09¢/kWh with an average monthly bill of $76.88, per EIA Form 861-M data. That rate is 0.1¢ above the Washington average of 14.95¢/kWh; the U.S. average is 18.44¢/kWh.
Rate trend vs the Washington average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| June 2025 | 15.15 | 68.68 | 453 |
| July 2025 | 15.34 | 73.89 | 482 |
| August 2025 | 15.23 | 67.59 | 444 |
| September 2025 | 15.33 | 73.68 | 480 |
| October 2025 | 15.17 | 70.08 | 462 |
| November 2025 | 15.09 | 62.90 | 417 |
| December 2025 | 14.61 | 100.68 | 689 |
| January 2026 | 14.62 | 112.80 | 772 |
| February 2026 | 14.77 | 106.38 | 720 |
| March 2026 | 14.97 | 120.96 | 808 |
| April 2026 | 14.93 | 106.17 | 711 |
| May 2026 | 15.09 | 76.88 | 510 |
City of Seattle vs Washington vs the U.S.
| City of Seattle | Washington | U.S. average | |
|---|---|---|---|
| Rate (May 2026) | 15.09¢/kWh | 14.95¢/kWh | 18.44¢/kWh |
| Average monthly bill | $76.88 | $112.99 | $135.70 |
| Average monthly usage | 510 kWh | 756 kWh | 736 kWh |
| Rate change, 1 year | +1.0% | +9.5% | +6.2% |
Estimate a bill at City of Seattle rates
Worked example: 1,000 kWh at City of Seattle's average effective rate of 15.09¢/kWh is about $150.90. The utility's actual average usage is 510 kWh/month, which produces the $76.88 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full Washington rate trend, look up another utility by ZIP code, or read why electric bills are rising.
Source: EIA Form 861-M (monthly utility-level sales to ultimate customers, residential), published with roughly a two-month lag. Rate = revenue ÷ sales; bill = revenue ÷ customers. Months failing basic sanity screens are excluded. See methodology.