massoutage

2021 Missouri Power Outage Report

In 2021, the average Missouri customer went without power for about 4.5 hours — the 23rd worst of any US state that year, 1.0× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
4.5
Peak customers out
69,559
Rank (worst state)
23rd
Counties affected
20

Missouri outages over the decade

Average hours without power per customer, 2021 highlighted.

2.2h20153.1h20162.8h20171.7h20183.8h20192.8h20204.5h20213.5h20229.4h20235.8h20248.9h2025

Hardest-hit Missouri counties in 2021

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

1St. Louis city69,5592Jackson County42,5973St. Charles County25,7164Buchanan County21,1025Clay County20,2346Jefferson County11,1387Warren County9,8258Platte County9,2429Lincoln County9,20710Greene County8,08411Barry County6,94312Christian County6,72213St. Louis County6,67414Newton County6,25115Pemiscot County5,83616Cole County5,46317Ray County4,91418Cass County4,42819Callaway County4,34120Taney County4,204

Biggest Missouri outages of 2021

CountyBeganPeak customers out
St. Louis cityAugust 6, 202169,559
Jackson CountyFebruary 14, 202142,597
St. Louis cityJuly 4, 202140,765
St. Charles CountyJune 19, 202125,716
Buchanan CountyDecember 15, 202121,102
Clay CountyAugust 10, 202120,234
Jackson CountyDecember 14, 202118,941
St. Louis cityJune 17, 202117,892
Jackson CountyAugust 10, 202117,369
Jackson CountyJune 10, 202114,701
Missouri 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.