Sioux County, IA Power Outages
As of Nov 2, 11:30 PM EST, no power outages were reported in Sioux County, Iowa by MidAmerican Energy Co.
Sioux County on the Iowa outage map
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- Minor
- Moderate
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- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Sioux County power outage history
Every significant outage recorded in Sioux County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 112 significant power outages in Sioux County, meaning events that left at least 1% of customers in the dark. The largest (Apr 11–12, 2019) came when high winds left 4,636 customers (27.3% of the county) without power.
From 2018 to 2025, the average customer here lost about 1 hr 54 min of power per year, less than the Iowa average of 5 hr 30 min. That ranks 83rd of 99 Iowa counties for outage time, where 1st has the most.
June is the riskiest month: it accounted for 24% of all customer outage time from 2018 to 2025. On 18 days in that period, at least 5% of customers were out at the same time. Outage time in Sioux County has risen recently: about 2 hr 23 min per customer per year in 2022–2025, versus 1 hr 25 min in 2018–2021.
The most recent significant outage on record (Dec 14, 2025) affected 255 customers (1.5%) amid extreme cold.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Apr 11–12, 2019 | 4,636(27.3%) | 2 | High winds |
| 2 | Jul 29–30, 2025 | 4,060(23.9%) | 2 | Severe thunderstorms |
| 3 | Jul 11, 2024 | 3,265(19.2%) | 1 | Severe thunderstorms |
| 4 | May 11–13, 2022 | 3,204(18.9%) | 3 | Severe thunderstorms |
| 5 | Apr 2–3, 2020 | 2,459(14.5%) | 2 | Flooding |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in Sioux County?
Electric companies with service territory in Sioux County (EIA-861, 2025)
| Utility | Type | Customers (IA) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| MidAmerican Energy | Investor Owned | 750,247 | Reporting | |
| Alliant Energy (Iowa) | Investor Owned | 506,498 | Not reporting | |
| North West Rural Electric Coop | Cooperative | 10,461 | Not reporting | |
| City of Sioux Center | Municipal | 2,975 | Not reporting | |
| City of Orange City - (IA) | Municipal | 2,462 | Not reporting | |
| Lyon Rural Electric Coop | Cooperative | 2,317 | Not reporting | |
| City of Hawarden - (IA) | Municipal | 1,322 | Not reporting | |
| City of Alton | Municipal | 600 | Not reporting | |
| WAPA-- Western Area Power Administration | Federal | — | Not reporting |
Customer counts are each utility's statewide total in Iowa. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Sioux County outage headlines in the past week.
Nearby counties
Sioux County power outage FAQ
Is the power out in Sioux County right now?
No outages are currently reported for Sioux County by participating utilities. If your power is out, report it to your electric company.
Which electric company serves Sioux County?
According to EIA-861 service territory data, MidAmerican Energy Co, Interstate Power and Light Co, North West Rural Electric Coop, City of Sioux Center and 5 others provide electric service in Sioux County, Iowa.
What was the worst power outage in Sioux County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Apr 11–12, 2019. It peaked at 4,636 customers without power (27.3% of the county). NOAA storm reports for that period point to high winds.
How often does the power go out in Sioux County?
EAGLE-I has recorded 112 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 1 hr 54 min of power per year, and on 18 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "Sioux County, IA Power Outages." Accessed November 2, 2026. https://poweroutagetracker.com/outages/iowa/sioux-county