Power Outages in Hamilton County, IA
As of the latest utility report, no major power outages are reported in Hamilton County, IA. In 2025, the average customer here lost power for about 2.7 hours.
Hamilton County, IA is served by 2 tracked utilities.
No active power outages are currently reported in Hamilton County.
No active NWS alerts for Hamilton County right now.
Hamilton County has been under 85 National Weather Service alerts recently — most recently a Severe Thunderstorm Watch on August 18, 2026.
- Heat Advisory ×16
- Severe Thunderstorm Warning ×15
- Extreme Heat Warning ×13
- Extreme Heat Watch ×11
- Dense Fog Advisory ×10
- Severe Thunderstorm Watch ×6
Hardest-hit cities in Hamilton County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Hamilton County went about 2.7 hours without power. Peak simultaneous outage on record reached 1,621 customers.
Worst year here was 2020 (peak 1,431 customers out) · decade average 1.9 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 63 | 252 | 0.3 |
| 2016 | 126 | 1,123 | 0.6 |
| 2017 | 152 | 1,109 | 0.8 |
| 2018 | 156 | 1,084 | 1.1 |
| 2019 | 225 | 1,111 | 1.1 |
| 2020 | 183 | 1,431 | 6.8 |
| 2021 | 197 | 1,621 | 4.3 |
| 2022 | 259 | 363 | 0.7 |
| 2023 | 292 | 822 | 1.3 |
| 2024 | 318 | 1,077 | 0.8 |
| 2025 | 217 | 699 | 2.7 |
Relatively Moderate high winds exposure · 1.9 hrs/yr of outages over the last decade.
Power outages in Hamilton County: FAQ
- How often does Hamilton County, IA lose power?
- Based on EAGLE-I records, Hamilton County, IA logged 217 distinct outage events in 2025, averaging about 2.7 hours without power per customer over the year.
- What was the worst power outage in Hamilton County, IA?
- The largest tracked outage peaked at 1,621 customers without power, beginning December 16, 2021 and lasting about 3d.
- Is there a power outage in Hamilton County, IA right now?
- No major outage is currently reported for Hamilton County, IA. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Hamilton County, IA?
- Tracked electric providers include Alliant Energy (Interstate Power & Light), MIDAMERICAN ENERGY CO.
Outages are tracked at the county level; these ZIP codes fall within Hamilton County.
50034, 50075, 50130, 50132, 50231, 50246, 50249, 50271, 50595
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Alliant Energy (Interstate Power & Light) | — | ODIN ✓ | — |
| MIDAMERICAN ENERGY CO | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/19079 and /api/v1/counties/19079/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Iowa customers).