Electricity rates in 99320 — Benton City, WA
Homes in ZIP 99320 pay about 8.8¢ per kWh (PUD No 1 of Benton County, 2024 average). The Washington average is 14.6¢ and the U.S. average 18.2¢ (Aug 2026).
What a month of electricity costs
Monthly cost at the average price of 8.8¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.
Where ZIP 99320 is
Outlined: ZIP code area · scroll or pinch to zoomUtilities serving 99320
| Utility | Home price | Avg. bill | Customers in WA |
|---|---|---|---|
| PUD No 1 of Benton County Political Subdivision | 8.8¢ 2024 | $107 | 50,072 |
| PUD No 2 of Grant County Political Subdivision | 6.0¢ 2024 | $100 | 42,485 |
| PUD No 1 of Franklin County Political Subdivision | 9.7¢ 2024 | $117 | 27,388 |
| Benton Rural Electric Assn Cooperative | 9.3¢ 2024 | $132 | 13,422 |
| PacifiCorp Investor Owned · serves Benton County | 15.1¢ Jan–Aug 2026 | $131 | 114,453 |
| City of Richland (WA) Municipal · serves Benton County | 9.8¢ 2024 | $122 | 25,687 |
| PUD No 1 of Klickitat County Political Subdivision · serves Benton County | 12.1¢ 2024 | $138 | 11,917 |
Utilities are matched to this ZIP code by NREL’s ZIP–utility table and the EIA service-territory list for Benton County; county matches may serve only part of the area. Prices are each utility’s average residential revenue per kWh.
Washington price trend
Hover or tap the chart for exact monthly values. Source: EIA-861M (monthly, latest months preliminary); forecast: EIA Short-Term Energy Outlook (October 2026) for the Pacific region, which includes Alaska, California, Hawaii, Oregon, Washington.
Averages, not a quote. Prices here are what each utility’s residential customers paid on average (revenue ÷ kWh sold, fixed charges included), as reported to the U.S. Energy Information Administration. Your own rate depends on your plan, season and usage — check your bill or your utility’s tariff.
Questions about 99320
How much does electricity cost in 99320?
About 8.8¢ per kWh for homes (PUD No 1 of Benton County, 2024 average, EIA). At 900 kWh a month that is roughly $79.
Who is the electric utility for 99320?
PUD No 1 of Benton County, with about 50,072 residential customers in Washington; 6 other utilities also serve parts of the area.
Is electricity in WA getting more expensive?
The Washington residential average was 14.6¢ per kWh in August 2026, up 7.2% from a year earlier; the U.S. average was 18.2¢.