Electricity rates in Dayton, WA
Dayton (2,526 people, Columbia County) is served by 5 electric utilities. Homes on Avista Corp. pay about 14.62¢/kWh, 4% more than the Washington average.
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Electric companies serving Dayton
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Avista Corp. | Investor-owned utility | 14.62¢ | $134 | 247K | 200 |
| PacifiCorp | Investor-owned utility | 15.38¢ | $179 | 115K | 103 |
| Inland Power & Light Company | Electric cooperative | 10.30¢ | $148 | 42K | 536 |
| Big Bend Electric Co-op | Electric cooperative | 10.35¢ | $166 | 6,365 | 449 |
| Columbia Rural Electric Association | Electric cooperative | 16.78¢ | $189 | 4,466 | 200 |
Power outages in Columbia County right now
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Outage history in Columbia County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 203 | 426 |
| Days with outages | 20 | 22 |
| Most customers out at once | 907 (46.3%) | 916 (46.7%) |
| Worst day | 2024-07-18 | 2025-09-18 |
Outage minutes by month, 2025
More outage time than 2024 (203 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Waitsburg 15.4¢
- Pomeroy 14.6¢
- Walla Walla East 15.4¢
- Walla Walla 15.4¢
- College Place 15.4¢
- Garrett 15.4¢
- Clarkston Heights-Vineland 14.6¢
- West Clarkston-Highland 14.6¢
- Asotin 14.6¢
- Clarkston 14.6¢
ZIP codes: 99328
Frequently asked questions
What is the electricity rate in Dayton?
Most homes in Dayton get power from Avista Corp., where residential customers pay an average of 14.62¢/kWh including all charges. The Washington average is 14.12¢ and the U.S. average 17.99¢. Other utilities serving parts of Dayton: PacifiCorp (15.38¢), Inland Power & Light Company (10.30¢), Big Bend Electric Co-op (10.35¢).
What is the average electric bill in Dayton?
About $134 a month, based on 916 kWh a month (the average for Avista Corp. customers) at 14.62¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Dayton, WA?
5 utilities serve Dayton's ZIP codes: Avista Corp., PacifiCorp, Inland Power & Light Company, Big Bend Electric Co-op, Columbia Rural Electric Association. Which one serves you depends on your street address.
How often does the power go out in Dayton?
In 2025, customers in Columbia County averaged 7 hr 6 min without power. Outages hit 22 days of the year, and the worst day was 2025-09-18, when 916 customers (46.7%) were out. Source: ORNL EAGLE-I.