Power Outages in Winnebago County, WI
As of October 19, 2026 07:45 UTC, no outages are reported by Wisconsin Power & Light Co, Wisconsin Electric Power Co and Wisconsin Public Service Corp in Winnebago County, WI. There is no live feed for Alliant Energy (Interstate Power & Light) and City of Menasha - (WI). In 2025, the average customer here lost power for about 1.2 hours.
Winnebago County, WI is served by 5 tracked utilities.
Cite this data
- URL
- https://massoutage.com/wisconsin/winnebago-county
- As of
- October 19, 2026 07:45 UTC
- Publisher
- MassOutage
MassOutage, "Power Outages in Winnebago County, WI", live data as of October 19, 2026 07:45 UTC. https://massoutage.com/wisconsin/winnebago-county
No active outages are reported by Wisconsin Power & Light Co, Wisconsin Electric Power Co and Wisconsin Public Service Corp in Winnebago County.
No live feed for Alliant Energy (Interstate Power & Light) and City of Menasha - (WI): outages in theirservice area won't show here.
9.8%of this county's ~77,365 customers are served by utilities with a county-level live feed.
We can't see outages for: Alliant Energy (Interstate Power & Light), City of Menasha - (WI). Their customers are not in any number on this page; check their own outage maps.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Wisconsin Power & Light Co | Live · county | 0 | 7,606 | 0.0% | - | - | - | |
| Wisconsin Electric Power Co | Live · county | 0 | - | - | - | 0 | - | |
| Wisconsin Public Service Corp | Live · county | 0 | - | - | - | 0 | - | |
| Alliant Energy (Interstate Power & Light) | No live feed | can't see | - | - | - | - | - | - |
| City of Menasha - (WI) | No live feed | can't see | - | - | - | - | - | - |
Wisconsin Power & Light Co, Wisconsin Electric Power Co and Wisconsin Public Service Corp reportevery town in the county on each poll, so 0 out is a real all-clear. ETRs are the utility's own estimates.
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Winnebago Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.
By ZIP code (10)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 54956 | 323 | ≤11 | 215 | ≤11 |
| 54901 | 283 | 0 | 177 | ≤11 |
| 54902 | 188 | ≤11 | 131 | ≤11 |
| 54904 | 168 | ≤11 | 109 | ≤11 |
| 54963 | 49 | 0 | 37 | 0 |
| 54986 | 38 | 0 | 30 | 0 |
| 54947 | 19 | 0 | 14 | 0 |
| 54980 | ≤11 | 0 | ≤11 | 0 |
| 54964 | ≤11 | 0 | ≤11 | 0 |
| 54927 | ≤11 | 0 | ≤11 | 0 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Winnebago County or any town and utility in it.
No active NWS alerts for Winnebago County right now.
Winnebago County has been under 6 National Weather Service alerts recently, most recently a Freeze Warning on October 17, 2026.
- Freeze Warning ×3
- Flood Advisory ×1
- Freeze Watch ×1
- Special Weather Statement ×1
Hardest-hit cities in Winnebago County
Where this event is concentrated across the county's towns and townships.
- Oshkoshno outage reported
Historical reliability
In 2025, the average customer in Winnebago County went about 1.2 hours without power. Peak simultaneous outage on record reached 20,041 customers.
The US EIA reports Wisconsin utilities averaged 4.4 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 1.2 hrs.
Worst year here was 2022 (peak 20,041 customers out) · decade average 2.0 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 571 | 6,499 | 1.3 |
| 2016 | 533 | 6,474 | 0.8 |
| 2017 | 586 | 10,230 | 1.4 |
| 2018 | 459 | 12,757 | 1.1 |
| 2019 | 460 | 9,837 | 2.9 |
| 2020 | 536 | 7,682 | 1.6 |
| 2021 | 596 | 4,582 | 1.8 |
| 2022 | 697 | 20,041 | 6.2 |
| 2023 | 668 | 5,856 | 1.2 |
| 2024 | 700 | 6,657 | 2.6 |
| 2025 | 692 | 4,706 | 1.2 |
Cost of power in Winnebago County
ENERGY & AI DEMAND →Estimated residential electricity price for Winnebago County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.
- Wisconsin Electric Power Co20.5¢1,056,086 cust
- Wisconsin Power & Light Co18.5¢440,746 cust
- Wisconsin Public Service Corp17.2¢415,643 cust
- City of Menasha - (WI)13.2¢8,683 cust
Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.
Relatively High high winds exposure · 2.0 hrs/yr of outages over the last decade.
Power outages in Winnebago County: FAQ
- How often does Winnebago County, WI lose power?
- Based on EAGLE-I records, Winnebago County, WI logged 692 distinct outage events in 2025, averaging about 1.2 hours without power per customer over the year.
- What was the worst power outage in Winnebago County, WI?
- The largest tracked outage peaked at 20,041 customers without power, beginning July 23, 2022 and lasting about 1d 13h.
- Is there a power outage in Winnebago County, WI right now?
- No major outage is currently reported for Winnebago County, WI. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Winnebago County, WI?
- Tracked electric providers include Alliant Energy (Interstate Power & Light), Wisconsin Electric Power Co, Wisconsin Power & Light Co, Wisconsin Public Service Corp.
Oshkosh. Outage counts for these communities are reported at the Winnebago County level shown above.
Outages are tracked at the county level; these ZIP codes fall within Winnebago County.
54901, 54902, 54904, 54927, 54947, 54956, 54963, 54964, 54980, 54985, 54986
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Wisconsin Electric Power Co | 3.1 hrs | Live · county | - |
| Wisconsin Public Service Corp | 10.5 hrs | Live · county | - |
| Alliant Energy (Interstate Power & Light) | - | No live feed | - |
| Wisconsin Power & Light Co | - | Live · county | - |
| City of Menasha - (WI) | - | No live feed | - |
Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Wisconsin customers). Machine-readable data: /api/v1/counties/55139 and /api/v1/counties/55139/history.