States › Washington › City of Tacoma
municipal utility · EIA utility 18429
City of Tacoma
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Annual figures: Form EIA-861 for 2024, final release. Monthly state figures run to July 2026.
In its Form EIA-861 filing for 2024, City of Tacoma, a municipal utility, reported 180,357 residential customers in Washington, with a service territory that touches 4 counties.
Its average residential price that year was 10.81¢ per kilowatthour, 9.2% below the Washington average of 11.90¢ and 34% below the US average of 16.48¢. The figure is residential revenue divided by residential sales, so it folds in fixed charges, riders and every rate schedule the utility bills under.
That works out to an average residential bill of $98.06 a month on average use of 907 kWh a month. Across Washington the average bill was $113.68 on 955 kWh, so a bill gap reflects how much power households use as well as what each kilowatthour costs.
For reliability it reported a SAIDI of 170.8 minutes per customer with major event days included and 80.5 minutes with them excluded, calculated under IEEE 1366 standard. The median among Washington utilities reporting was 255.4 minutes with major event days; this utility's figure is 33% below that median.
The average price is up 12.6% on 2019, against up 22.6% for Washington as a whole, and up 4.2% on 2023. EIA's early release for 2025, which has not been fully edited, shows 11.45¢.
Compared with Washington, the US and other municipal utilities
| Measure, 2024 | This utility | Municipal utilities, US median | Washington | United States |
|---|---|---|---|---|
| Average residential price per kWh | 10.81¢ | 12.45¢ | 11.90¢ | 16.48¢ |
| Average monthly residential bill | $98.06 | $113.02 | $113.68 | $142.26 |
| Average monthly use, kWh | 907 | 905 | 955 | 863 |
| Residential price change, 1 year | +4.2% | — | +8.4% | +3.0% |
| Residential price change, 5 years | +12.6% | — | +22.6% | +26.7% |
| SAIDI, all events (minutes) | 170.8 | 64.4 | 255.4 median | 184.5 median |
| SAIDI, without major event days | 80.5 | 40.3 | 136.1 median | 99.8 median |
State and US prices, bills and use are EIA's own averages over every customer. The ownership column and the reliability columns are medians across utilities with at least 1,000 residential customers, computed on this site from the final 2024 file. Among the 6 filings by municipal utilities in Washington, the median price was 10.14¢. In Washington this utility's price ranks 13 of 36, counting from the highest.
Average price by year
City of TacomaWashington averageUS average
Year by year
| Year | ¢ per kWh | Washington ¢ | Monthly bill | kWh a month | Residential customers | All sales |
|---|---|---|---|---|---|---|
| 2025 early release | 11.45¢ | 13.11¢ | $105.14 | 919 | 177,554 | 4.3 TWh |
| 2024 | 10.81¢ | 11.90¢ | $98.06 | 907 | 180,357 | 4.4 TWh |
| 2023 | 10.37¢ | 10.98¢ | $97.86 | 944 | 174,342 | 4.6 TWh |
| 2022 | 10.03¢ | 10.26¢ | $99.27 | 989 | 171,948 | 4.8 TWh |
| 2021 | 9.88¢ | 10.11¢ | $97.40 | 986 | 163,869 | 4.6 TWh |
| 2020 | 9.74¢ | 9.87¢ | $95.73 | 983 | 162,367 | 4.6 TWh |
| 2019 | 9.60¢ | 9.71¢ | $93.48 | 974 | 162,213 | 4.7 TWh |
| 2018 | 9.44¢ | 9.75¢ | $92.57 | 980 | 158,427 | 4.6 TWh |
| 2017 | 8.75¢ | 9.66¢ | $89.54 | 1,024 | 157,813 | 4.7 TWh |
| 2016 | 8.48¢ | 9.48¢ | $81.57 | 962 | 157,538 | 4.6 TWh |
| 2015 | 8.45¢ | 9.09¢ | $79.90 | 946 | 155,496 | 4.6 TWh |
| 2014 | 8.15¢ | 8.67¢ | $81.99 | 1,006 | 153,541 | 4.7 TWh |
| 2013 | 7.83¢ | 8.70¢ | $81.76 | 1,045 | 152,633 | 4.8 TWh |
Bundled residential service only in the price, bill and use columns. Bill = residential revenue ÷ customers ÷ 12; use = residential sales ÷ customers ÷ 12. EIA describes its early release as not fully edited; it is shown for this utility alone and enters no average, median or rank on this site.
Month by month
City of TacomaWashington average
Sales by sector, 2024
| Sector | Customers | Sales | Share of sales | Revenue | ¢ per kWh, bundled |
|---|---|---|---|---|---|
| Residential | 180,357 | 2 TWh | 45% | $212,225,800 | 10.81¢ |
| Commercial | 20,032 | 319.9 GWh | 7% | $32,954,300 | 10.30¢ |
| Industrial | 2,795 | 2.1 TWh | 48% | $160,128,600 | 7.69¢ |
| Transportation | 1 | 791 MWh | 0% | $75,200 | — |
Customers, sales and revenue count every service type the utility reported (bundled, energy-only and delivery-only). The price column uses bundled service alone, because part-bill revenue would understate it. Sources of energy: 5.8 TWh in total, of which 36.9% was its own net generation and 3.6 TWh was bought wholesale; summer peak demand 718 MW.
Reliability
Minutes of sustained interruption per customer in 2024, as the utility reported them under IEEE 1366 standard. SAIFI: 0.93 interruptions per customer with major event days, 0.55 without; CAIDI 183.6 minutes per interruption. EIA's Washington total across all reporting utilities was 623.5 minutes with major event days and 158.6 without. Major event days are storms and similar events that a utility's chosen method sets apart; methods differ, so treat comparisons as approximate. What SAIDI and SAIFI mean.
| Year | SAIDI, all events | SAIDI, no major events | SAIFI, all events | SAIFI, no major events | Method |
|---|---|---|---|---|---|
| 2025 early release | 550.5 | 470.6 | 0.89 | 0.68 | IEEE 1366 |
| 2024 | 170.8 | 80.5 | 0.93 | 0.55 | IEEE 1366 |
| 2023 | 55.2 | 55.2 | 0.60 | 0.60 | IEEE 1366 |
| 2022 | 152.3 | 76.2 | 1.05 | 0.73 | IEEE 1366 |
| 2021 | 314.4 | 90.8 | 1.31 | 0.70 | IEEE 1366 |
| 2020 | 84.9 | 55.5 | 0.74 | 0.57 | IEEE 1366 |
| 2019 | 124.9 | 51.3 | 0.73 | 0.50 | IEEE 1366 |
| 2018 | 85.8 | 56.4 | 0.77 | 0.49 | IEEE 1366 |
| 2017 | 77.1 | 54.2 | 0.76 | 0.58 | Other |
| 2016 | 75.9 | 57.9 | 0.75 | 0.54 | Other |
| 2015 | 126.2 | 42.0 | 0.80 | 0.41 | Other |
| 2014 | 50.0 | 50.0 | 1.00 | 1.00 | Other |
| 2013 | 64.0 | 64.0 | 0.52 | 0.52 | Other |
Generation at plants it operates, 2025
- Hydro 100% 2.3 TWh
Net generation of 2.3 TWh at power plants this utility operates, from Form EIA-923. It is not the mix delivered to customers: utilities also buy power wholesale (3.6 TWh in 2024), sell generation to others and may co-own plants that another company operates.
Counties in its service territory
Counties the utility listed on Form EIA-861 for 2024. Listing a county does not mean the utility serves all of it.
Other utilities in Washington
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| City of Seattle | Municipal | 459,964 | 14.09¢ | $84.68 | 323.6 | 110.8 |
| City of Richland | Municipal | 25,687 | 9.82¢ | $122.21 | 94.0 | 94.0 |
| City of Port Angeles | Municipal | 9,321 | 9.13¢ | $101.03 | — | — |
| City of Centralia | Municipal | 9,068 | 9.88¢ | $110.54 | 179.9 | 55.7 |
| City of Ellensburg | Municipal | 8,799 | 10.40¢ | $94.23 | — | — |
| PUD No 1 of Clark County | Public power district | 219,477 | 10.41¢ | $104.88 | 144.8 | 59.0 |
| PUD No 1 of Snohomish County | Public power district | 346,532 | 11.51¢ | $108.89 | 620.9 | 181.4 |
| Avista Corp | Investor-owned | 374,290 | 11.78¢ | $105.41 | 177.5 | 130.5 |
All Washington utilities · Municipal utilities nationwide
Questions and answers
How much does electricity cost from City of Tacoma?
Residential customers paid an average of 10.81¢ per kilowatthour in 2024. EIA derives this by dividing residential revenue by residential sales; it is an average across all rate schedules and charges, not a tariff rate.
How does that compare with Washington?
The Washington average residential price in 2024 was 11.90¢ and the US average 16.48¢; City of Tacoma was 9.2% below the state figure. Among 36 utility filings with a bundled residential price in Washington, it had the 13th highest.
What is the average City of Tacoma bill?
$98.06 a month in 2024, on average residential use of 907 kWh a month (annual revenue and sales divided by customers and by twelve). The Washington average was $113.68 on 955 kWh.
How reliable is City of Tacoma service?
It reported 170.8 minutes of interruption per customer (SAIDI) including major event days and 80.5 minutes excluding them, with 0.93 interruptions per customer (SAIFI) in 2024. Utilities calculate these under differing methods, so comparisons are approximate.
Is the City of Tacoma price rising?
The average residential price was up 4.2% in 2024 compared with 2023 and up 12.6% compared with 2019. EIA's early, not fully edited release for 2025 shows 11.45¢.
Which counties does City of Tacoma serve?
Its Form EIA-861 service territory lists 4 counties: King County, WA, Lewis County, WA, Mason County, WA and Pierce County, WA. A county can appear in several utilities' territories.
Provenance
Source: U.S. Energy Information Administration. Annual figures are from Form EIA-861 (sales to ultimate customers, reliability, operational data and service territory files), final release for 2024, respondent "City of Tacoma - (WA)", utility number 18429; the 2025 row is from EIA's early release. Monthly utility figures are from the Form EIA-861M sample. State and US averages are from the Form EIA-861M sales and revenue workbook, published through July 2026. Generation by fuel is from Form EIA-923, 2025 final. All are US government works in the public domain. Page built 1 Oct 2026. Errors in processing are corrected at the next build; see corrections. For tariffs and rate schedules, consult the utility or the state utility commission.