Hamilton County, IA Power Outages
As of Nov 2, 11:30 PM EST, no power outages were reported in Hamilton County, Iowa by MidAmerican Energy Co.
Hamilton County on the Iowa outage map
- Normal
- Minor
- Moderate
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- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Hamilton County power outage history
Every significant outage recorded in Hamilton County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 110 significant power outages in Hamilton County, meaning events that left at least 1% of customers in the dark. The largest (Dec 16–17, 2021) came when tornadoes left 1,621 customers (17.6% of the county) without power.
From 2018 to 2025, the average customer here lost about 2 hr 21 min of power per year, less than the Iowa average of 5 hr 30 min. That ranks 70th of 99 Iowa counties for outage time, where 1st has the most.
August is the riskiest month: it accounted for 29% of all customer outage time from 2018 to 2025. On 26 days in that period, at least 5% of customers were out at the same time. Outage time in Hamilton County has fallen recently: about 1 hr 23 min per customer per year in 2022–2025, versus 3 hr 20 min in 2018–2021.
The most recent significant outage on record (Nov 7, 2025) affected 139 customers (1.5%).
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Dec 16–17, 2021 | 1,621(17.6%) | 2 | Tornadoes |
| 2 | Apr 3, 2020 | 1,431(15.5%) | 1 | Flooding |
| 3 | Dec 10–11, 2021 | 1,317(14.3%) | 2 | Winter storm |
| 4 | Aug 10–14, 2020 | 1,142(12.4%) | 5 | Severe thunderstorms |
| 5 | Feb 3, 2016 | 1,123(12.2%) | 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 Hamilton County?
Electric companies with service territory in Hamilton 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 | |
| Midland Power Coop | Cooperative | 12,717 | Not reporting | |
| City of Webster City - (IA) | Municipal | 4,462 | Not reporting | |
| Prairie Energy Coop | Cooperative | 4,310 | Not reporting | |
| City of Story City - (IA) | Municipal | 1,993 | Not reporting | |
| City of Stratford - (IA) | Municipal | 404 | Not reporting | |
| City of Ellsworth - (IA) | Municipal | 292 | Not reporting | |
| City of Stanhope - (IA) | Municipal | 255 | Not reporting | |
| Pleasant Hill Community Line | Cooperative | 140 | Not reporting | |
| Cass Electric Coop | Cooperative | 88 | 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 Hamilton County outage headlines in the past week.
Nearby counties
Hamilton County power outage FAQ
Is the power out in Hamilton County right now?
No outages are currently reported for Hamilton County by participating utilities. If your power is out, report it to your electric company.
Which electric company serves Hamilton County?
According to EIA-861 service territory data, MidAmerican Energy Co, Interstate Power and Light Co, Midland Power Coop, City of Webster City - (IA) and 7 others provide electric service in Hamilton County, Iowa.
What was the worst power outage in Hamilton County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Dec 16–17, 2021. It peaked at 1,621 customers without power (17.6% of the county). NOAA storm reports for that period point to tornadoes.
How often does the power go out in Hamilton County?
EAGLE-I has recorded 110 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 2 hr 21 min of power per year, and on 26 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. "Hamilton County, IA Power Outages." Accessed November 2, 2026. https://poweroutagetracker.com/outages/iowa/hamilton-county