Electricity rates in 85638 — Tombstone, AZ
Homes in ZIP 85638 pay about 17.3¢ per kWh (Arizona Public Service Co., Jan–Aug 2026). The Arizona average is 15.1¢ and the U.S. average 18.2¢ (Aug 2026).
What a month of electricity costs
Monthly cost at the average price of 17.3¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.
Where ZIP 85638 is
Outlined: ZIP code area · scroll or pinch to zoomUtilities serving 85638
| Utility | Home price | Avg. bill | Customers in AZ |
|---|---|---|---|
| Arizona Public Service Co. Investor Owned | 17.3¢ Jan–Aug 2026 | $170 | 1,256,120 |
| Sulphur Springs Valley E C Inc. Cooperative | 13.5¢ 2024 | $100 | 46,008 |
| Tucson Electric Power Co. Investor Owned · serves Cochise County | 15.0¢ Jan–Aug 2026 | $125 | 412,747 |
| Columbus Electric Coop, Inc. Cooperative · serves Cochise County | 14.6¢ 2024 | $123 | 522 |
Utilities are matched to this ZIP code by NREL’s ZIP–utility table and the EIA service-territory list for Cochise County; county matches may serve only part of the area. Prices are each utility’s average residential revenue per kWh.
Arizona 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 85638
How much does electricity cost in 85638?
About 17.3¢ per kWh for homes (Arizona Public Service Co., Jan–Aug 2026, EIA). At 900 kWh a month that is roughly $156.
Who is the electric utility for 85638?
Arizona Public Service Co., with about 1,256,120 residential customers in Arizona; 3 other utilities also serve parts of the area.
Is electricity in AZ getting more expensive?
The Arizona residential average was 15.1¢ per kWh in August 2026, down 0.3% from a year earlier; the U.S. average was 18.2¢.