Electricity rates in 82604 — Casper, WY
Homes in ZIP 82604 pay about 15.6¢ per kWh (PacifiCorp, Jan–Aug 2026). The Wyoming average is 14.4¢ and the U.S. average 18.2¢ (Aug 2026).
What a month of electricity costs
Monthly cost at the average price of 15.6¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.
Where ZIP 82604 is
Outlined: ZIP code area · scroll or pinch to zoomUtilities serving 82604
| Utility | Home price | Avg. bill | Customers in WY |
|---|---|---|---|
| PacifiCorp Investor Owned | 15.6¢ Jan–Aug 2026 | $99 | 118,130 |
| High Plains Power Inc. Cooperative | 15.0¢ Jan–Aug 2026 | $130 | 12,767 |
Utilities are matched to this ZIP code by NREL’s ZIP–utility table and the EIA service-territory list for Natrona County; county matches may serve only part of the area. Prices are each utility’s average residential revenue per kWh.
Wyoming 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 Mountain region, which includes Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming.
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 82604
How much does electricity cost in 82604?
About 15.6¢ per kWh for homes (PacifiCorp, Jan–Aug 2026, EIA). At 900 kWh a month that is roughly $140.
Who is the electric utility for 82604?
PacifiCorp, with about 118,130 residential customers in Wyoming; 1 other utility also serves parts of the area.
Is electricity in WY getting more expensive?
The Wyoming residential average was 14.4¢ per kWh in August 2026, up 0.7% from a year earlier; the U.S. average was 18.2¢.