18.69¢
per kWh, 2025
[ Imperial Irrigation District / CA ]
Imperial Irrigation District electricity rates in California
PUBLIC BOARD SETS RATES · DATA 2025
change in average rate, 2024→2025
+4.4%
vs 2024
142,916
residential customers
+49.0%
since 2020
What your bill becomes
Bill today
No change on file
Difference / month · / year
Estimated at Imperial Irrigation District's average effective residential rate (18.69¢/kWh, EIA, all charges included). Your tariff, fees and taxes differ.
Rate history 2015–2025
| Year | ¢/kWh | Change | Customers |
|---|---|---|---|
| 2015 | 13.19¢ | — | 130,257 |
| 2016 | 12.50¢ | −5.2% | 128,635 |
| 2017 | 12.93¢ | +3.4% | 132,632 |
| 2018 | 12.15¢ | −6.0% | 133,668 |
| 2019 | 12.32¢ | +1.4% | 134,781 |
| 2020 | 12.54¢ | +1.8% | 135,828 |
| 2021 | 14.42¢ | +15.0% | 137,541 |
| 2022 | 15.60¢ | +8.2% | 139,162 |
| 2023 | 17.58¢ | +12.7% | 140,906 |
| 2024 | 17.91¢ | +1.9% | 142,078 |
| 2025 | 18.69¢ | +4.4% | 142,916 |
How this compares
31.35¢
California average, 2025
−40.4%
Imperial Irrigation District vs CA 2025 average
+8.5%
vs US 2025 average
#26
priciest in CA
Serves 3 counties in California: Imperial, Riverside, San Diego. 40 ZIP codes.
What the numbers show
Since 2015, Imperial Irrigation District's average residential rate has gone from 13.19¢ to 18.69¢ per kWh: +41.7% over 10 years, or about +3.5% a year. It rose in 8 of the 10 years we can compare, and the biggest one-year increase was +15.0% in 2021. The largest drop was −6.0% in 2018.
For a home using 494 kWh a month, the California average, Imperial Irrigation District's 2025 rate works out to about $1,108 a year, $750 less than at California's average rate of 31.35¢. Of the 32 California utilities in our data with a 2025 price, it is the 26th most expensive.
Imperial Irrigation District served 130,257 homes in 2015 and 142,916 in 2025 (+9.7%), under 1% of California's residential electricity customers.
Who sets Imperial Irrigation District's rates
Imperial Irrigation District is a public power utility run by its own governing board, which sets its rates. How much the California Public Utilities Commission oversees those rates depends on California law.
Commission contact: California Public Utilities Commission. How we calculate every figure on this page: methodology.
Questions
Is Imperial Irrigation District raising rates in 2026?
Imperial Irrigation District's rates are set by its governing board, not through a rate case at the California Public Utilities Commission, so check its own notices for a change this year. Its average residential rate moved +4.4% from 2024 to 2025.
What does Imperial Irrigation District charge per kWh?
Imperial Irrigation District's average effective residential rate was 18.69¢ per kWh in 2025 (EIA-861, revenue divided by sales, all charges included). California's 2025 average was 31.35¢.
How much have Imperial Irrigation District rates gone up in five years?
+49.0% between 2020 and 2025, against +49.4% for California as a whole over the latest five-year window.
How many customers does Imperial Irrigation District have in California?
142,916 residential customers in 2025, across 3 counties including Imperial, Riverside, San Diego, according to the EIA-861 survey.
Where do these numbers come from?
Rates and customer counts are from the US Energy Information Administration's annual EIA-861 survey, which every US utility files. Nothing here is a utility bill; use it to understand the direction and size of changes.
Sources
- EIA-861 Sales to Ultimate Customers, 2015–2025 (released 2026-10-07)
- EIA-861M monthly state averages through Jul 2026
- NREL utility-by-ZIP lookup (2024)