Cass County, IA Power Outages
As of Nov 2, 11:30 PM EST, no power outages were reported in Cass County, Iowa by MidAmerican Energy Co.
Cass 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.
Cass County power outage history
Every significant outage recorded in Cass County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 93 significant power outages in Cass County, meaning events that left at least 1% of customers in the dark. The largest (Dec 15–18, 2021) came when tornadoes left 1,135 customers (11% of the county) without power.
From 2018 to 2025, the average customer here lost about 1 hr 20 min of power per year, less than the Iowa average of 5 hr 30 min. That ranks 95th of 99 Iowa counties for outage time, where 1st has the most.
August is the riskiest month: it accounted for 22% of all customer outage time from 2018 to 2025. On 25 days in that period, at least 5% of customers were out at the same time. Outage time in Cass County has held roughly steady recently: about 1 hr 27 min per customer per year in 2022–2025, versus 1 hr 13 min in 2018–2021.
The most recent significant outage on record (Oct 26–27, 2025) affected 325 customers (3.1%).
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Dec 15–18, 2021 | 1,135(11%) | 4 | Tornadoes |
| 2 | Sep 17, 2019 | 1,093(10.6%) | 1 | Flooding |
| 3 | Mar 19, 2025 | 1,058(10.2%) | 1 | High winds |
| 4 | Apr 1, 2023 | 1,057(10.2%) | 1 | Tornadoes |
| 5 | Jan 9, 2024 | 993(9.6%) | 1 | Winter storm |
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 Cass County?
Electric companies with service territory in Cass 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 | |
| Southwest Iowa Rural Elec Coop | Cooperative | 6,094 | Not reporting | |
| Waverly Municipal Elec Utility - (IA) | Municipal | 5,232 | Not reporting | |
| Farmers Electric Coop, Inc - (IA) | Cooperative | 5,131 | Not reporting | |
| Guthrie County Rural E C A | Cooperative | 4,998 | Not reporting | |
| Atlantic Municipal Utilities (IA) | Municipal | 4,682 | Not reporting | |
| Nishnabotna Valley R E C | Cooperative | 3,765 | Not reporting | |
| City of Anita - (IA) | Municipal | 611 | 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 Cass County outage headlines in the past week.
Cass County power outage FAQ
Is the power out in Cass County right now?
No outages are currently reported for Cass County by participating utilities. If your power is out, report it to your electric company.
Which electric company serves Cass County?
According to EIA-861 service territory data, MidAmerican Energy Co, Interstate Power and Light Co, Southwest Iowa Rural Elec Coop, Waverly Municipal Elec Utility - (IA) and 6 others provide electric service in Cass County, Iowa.
What was the worst power outage in Cass County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Dec 15–18, 2021. It peaked at 1,135 customers without power (11% of the county). NOAA storm reports for that period point to tornadoes.
How often does the power go out in Cass County?
EAGLE-I has recorded 93 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 1 hr 20 min of power per year, and on 25 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. "Cass County, IA Power Outages." Accessed November 2, 2026. https://poweroutagetracker.com/outages/iowa/cass-county