massoutage

2021 Idaho Power Outage Report

In 2021, the average Idaho customer went without power for about 5.7 hours — the 18th worst of any US state that year, 1.7× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
5.7
Peak customers out
28,983
Rank (worst state)
18th
Counties affected
20

Idaho outages over the decade

Average hours without power per customer, 2021 highlighted.

2.6h20151.5h20163.0h20172.0h20182.2h20195.1h20205.7h20213.0h20222.4h20234.6h20245.6h2025

Hardest-hit Idaho counties in 2021

By peak customers out during the year's worst event.

1Bonner County28,9832Kootenai County24,5573Canyon County21,2604Madison County13,2775Bonneville County12,0616Boise County11,0457Ada County10,4218Shoshone County10,0989Bannock County8,28810Blaine County7,55911Nez Perce County6,46212Idaho County6,20213Elmore County5,61314Cassia County4,26815Twin Falls County4,00116Gooding County3,99417Gem County3,96118Valley County3,91319Payette County3,83720Jefferson County3,630

Biggest Idaho outages of 2021

CountyBeganPeak customers out
Bonner CountyApril 19, 202128,983
Bonner CountyNovember 15, 202125,571
Kootenai CountyJanuary 13, 202124,557
Canyon CountyMay 22, 202121,260
Bonner CountyJanuary 13, 202118,423
Madison CountyJune 12, 202113,277
Bonneville CountyJanuary 26, 202112,061
Madison CountyMay 16, 202111,807
Kootenai CountyNovember 15, 202111,743
Boise CountySeptember 16, 202111,045
Idaho by year:20252024202320222020201920182017
Other states in 2021:LAMIWVTXORMS

Part of the 2021 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.