massoutage

2025 South Dakota Power Outage Report

In 2025, the average South Dakota customer went without power for about 6.5 hours — the 14th worst of any US state that year, 2.2× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
6.5
Peak customers out
41,253
Rank (worst state)
14th
Counties affected
20

South Dakota outages over the decade

Average hours without power per customer, 2025 highlighted.

0.7h20150.9h20160.8h20171.1h20183.8h20194.6h20203.4h20216.9h20222.3h20232.3h20246.5h2025

Hardest-hit South Dakota counties in 2025

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

1Pennington County41,2532Lawrence County13,7593Meade County10,0654Minnehaha County7,2225Beadle County6,4106Custer County5,2957Fall River County4,3108Bon Homme County4,2229Butte County3,57310Lincoln County3,08711Dewey County2,11412Hutchinson County1,97913Yankton County1,95314Clark County1,95315Grant County1,91616Brown County1,83817McCook County1,71518Ziebach County1,57119Davison County1,45820Day County1,447

Biggest South Dakota outages of 2025

CountyBeganPeak customers out
Pennington CountyNovember 13, 202541,253
Pennington CountyDecember 18, 202525,159
Lawrence CountyNovember 13, 202513,759
Meade CountyNovember 13, 202510,065
Minnehaha CountyOctober 16, 20257,222
Minnehaha CountyNovember 7, 20256,588
Beadle CountyJuly 23, 20256,410
Lawrence CountyMay 18, 20255,991
Lawrence CountyJuly 22, 20255,512
Custer CountyDecember 18, 20255,295
South Dakota by year:20242023202220212020201920182017
Other states in 2025:WVMIAKPANCMO

Part of the 2025 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.