Marshall County, Iowa Power Outages, 2015 to 2023

Marshall County, Iowa had 11 major outages from 2015 to 2023

Higher outage time among US counties

Residents here averaged 3.35 times the US outage time per person and 3.93 times the Iowa rate. It ranks 1 of 97 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

1.2major outages per year

5 of 9years with a major outage

212 hrslongest major outage

Aug, Julhardest months

August and July made up 92% of this county's outage time. The largest outage on record began Aug 10, 2020, reached 16,662 customers, and left at least 200 customers out for 212.2 hours.

Outage time per resident, rated Iowa counties

MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

2015'152016'162017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	28,371	30	0
2016	43,394	33	2
2017	45,751	24	1
2018	506,459	34	4
2019	41,239	21	1
2020	2,274,722	23	3
2021	15,154	21	0
2022	17,512	27	0
2023	7,962	9	0

When outages hit

Share of this county's customer-hours by month.

20%

40%

60%

80%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Aug 10, 2020	212.2	16,662	2,131,197
Jul 19, 2018	78.2	8,657	352,358
Aug 19, 2020	100.5	4,023	113,235
Jul 23, 2018	30.8	2,805	62,588
Jul 24, 2018	53.5	2,203	45,713

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

Phones, Wi-Fi, lights, about 60 WRefrigerator, about 60 WChest freezer, about 40 WGas furnace fan, about 160 W

Hours to cover: 24

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

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How to read this

A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.