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Idaho Power Co: what its customers actually pay

Data as of: EIA-861 annual 2024 (released 2025) · EIA monthly state prices February 2026 · EIA weekly heating-fuel survey Mar 30, 2026 · retail-choice registry reviewed Jun 2026 · URDB tariffs pulled Jun 2026. Page generated 2026-06-12.

Idaho Power Co residential customers paid an average of 11.76¢/kWh in 20241% above the Idaho average of 11.60¢/kWh (EIA-861). It served 525,751 residential customers across 24 ID counties. Territories are fixed by address, but the cheapest nearby utility, United Electric Co-op (7.89¢), works out about $418/yr less at 10,800 kWh/yr.

How Idaho Power compares with the utilities next door

Utilities filing EIA-861 service territory in at least one county that Idaho Power also serves — average residential ¢/kWh (EIA-861 2024) and annual cost difference vs Idaho Power at 10,800 kWh/yr
Utility2024 ¢/kWhCustomersΔ vs Idaho Power, ¢/kWh$/yr difference
United Electric Co-op, Inc 7.89 5,100 -3.87 -$418
Avista Corp 11.62 128,226 -0.14 -$15
Idaho Power Co (this page) 11.76 525,751
PacifiCorp 12.11 74,170 +0.35 +$37

3 bundled utilities (≥5,000 customers) share at least one county with Idaho Power. Positive $/yr = that utility's customers pay more than Idaho Power customers at the same usage. Territories are fixed by address — these gaps measure cost differences between areas, not options you can pick between.

Where Idaho Power customers pay more (county benchmark)

Counties served by Idaho Power Co: cheapest bundled utility operating in the same county and the annual difference at 10,800 kWh/yr (EIA-861 2024)
CountyCheapest utility in countyTheir ¢/kWhIdaho Power premium, $/yr
AdaLower Valley Energy Inc7.23 +$489
AdamsLower Valley Energy Inc7.23 +$489
BoiseLower Valley Energy Inc7.23 +$489
CamasLower Valley Energy Inc7.23 +$489
CanyonLower Valley Energy Inc7.23 +$489
ElmoreLower Valley Energy Inc7.23 +$489
GemLower Valley Energy Inc7.23 +$489
GoodingLower Valley Energy Inc7.23 +$489

Multiple utilities in one county means adjoining territories, not household choice — you cannot switch wires companies. Showing the 8 highest-premium counties of 24 served.

Rate trend and size

Idaho Power Co residential average price and customers, EIA-861 2023 vs 2024
Metric20232024Change
Average price, ¢/kWh11.6511.76+1.0%
Residential customers510,236525,751+3.0%

Ownership: Investor Owned. Statewide context: Idaho electricity rates.

Supply vs delivery on a Idaho Power bill

Idaho is a regulated retail market — Idaho Power customers cannot choose a different supplier; rates are set in utility-commission proceedings. Official information: puc.idaho.gov.

Counties served (ID, EIA-861 2024)

Ada · Adams · Bannock · Bingham · Blaine · Boise · Camas · Canyon · Cassia · Elmore · Gem · Gooding · Idaho · Jerome · Lemhi · Lincoln · Minidoka · Oneida · Owyhee · Payette · Power · Twin Falls · Valley · Washington

Head-to-head comparisons

Questions people ask

Is Idaho Power Co more expensive than other Idaho utilities?
Idaho Power Co customers paid an average 11.76 cents/kWh in 2024 — 1% above the Idaho volume-weighted average of 11.60 cents (EIA-861, bundled residential service).
Can I switch away from Idaho Power Co?
No — distribution territory is fixed by address and Idaho has no residential supplier shopping. Rate changes go through the state utility commission (puc.idaho.gov).
How many customers does Idaho Power Co have?
525,751 residential customers in Idaho in 2024 across 24 counties, per its EIA-861 federal filing. Ownership type: investor-owned.
About these numbers. Rates shown are averages computed from federal regulatory filings (EIA Form 861) and public tariff databases — confirm with your utility before making decisions; your actual rate depends on your tariff, usage, and riders. Distribution utility is determined by address and generally cannot be chosen; in retail-choice states you may choose your supplier for the supply portion of the bill. Savings figures use 10,800 kWh/yr (US average residential usage) and are estimates, not quotes. EnergySavings is an independent data project by CertiHomes and is not affiliated with any utility, supplier, or government agency.