Power Outages in Winnebago County, IA
As of September 3, 2026 14:50 UTC, about 1 customers are without power in Winnebago County, IA across 1 reported incident. In 2025, the average customer here lost power for about 2.4 hours.
Winnebago County, IA is served by 2 tracked utilities.
No active NWS alerts for Winnebago County right now.
Winnebago County has been under 60 National Weather Service alerts recently — most recently a Severe Thunderstorm Watch on September 2, 2026.
- Heat Advisory ×21
- Extreme Heat Watch ×11
- Extreme Heat Warning ×10
- Dense Fog Advisory ×6
- Severe Thunderstorm Warning ×4
- Special Weather Statement ×4
Hardest-hit cities in Winnebago County
Where this event is concentrated across the county's towns and townships.
Live outage counts are tracked at the county level; a city-by-city split within Winnebago Countyisn't available yet.
Historical reliability
In 2025, the average customer in Winnebago County went about 2.4 hours without power. Peak simultaneous outage on record reached 3,317 customers.
Worst year here was 2019 (peak 2,116 customers out) · decade average 3.5 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 59 | 351 | 0.4 |
| 2016 | 72 | 446 | 0.9 |
| 2017 | 127 | 672 | 0.9 |
| 2018 | 370 | 2,028 | 3.0 |
| 2019 | 431 | 2,116 | 14.9 |
| 2020 | 327 | 2,187 | 6.2 |
| 2021 | 304 | 3,317 | 5.5 |
| 2022 | 286 | 1,768 | 1.9 |
| 2023 | 263 | 330 | 1.0 |
| 2024 | 197 | 472 | 1.4 |
| 2025 | 231 | 653 | 2.4 |
Relatively Moderate winter weather exposure · 3.5 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability relatively moderate — outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Winnebago County: FAQ
- How often does Winnebago County, IA lose power?
- Based on EAGLE-I records, Winnebago County, IA logged 231 distinct outage events in 2025, averaging about 2.4 hours without power per customer over the year.
- What was the worst power outage in Winnebago County, IA?
- The largest tracked outage peaked at 3,317 customers without power, beginning December 16, 2021 and lasting about 1d 2h.
- Is there a power outage in Winnebago County, IA right now?
- Yes — about 1 customers are currently without power across 1 reported incident(s).
- Which utilities serve Winnebago County, IA?
- Tracked electric providers include Alliant Energy (Interstate Power & Light), HEARTLAND POWER COOP.
Outages are tracked at the county level; these ZIP codes fall within Winnebago County.
50424, 50436, 50450, 50453, 50465, 50473, 50478
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 ✓ | — |
| HEARTLAND POWER COOP | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/19189 and /api/v1/counties/19189/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Iowa customers). Live data as of .