Power Outages in Rock County, WI
As of October 19, 2026 03:05 UTC, no outages are reported by Wisconsin Power & Light Co, Rock Energy Cooperative and Wisconsin Electric Power Co in Rock County, WI. There is no live feed for Alliant Energy (Interstate Power & Light), Brodhead Water & Lighting Comm, City of Evansville and City of Stoughton - (WI). In 2025, the average customer here lost power for about 1.8 hours.
Rock County, WI is served by 7 tracked utilities.
Cite this data
- URL
- https://massoutage.com/wisconsin/rock-county
- As of
- October 19, 2026 03:05 UTC
- Publisher
- MassOutage
MassOutage, "Power Outages in Rock County, WI", live data as of October 19, 2026 03:05 UTC. https://massoutage.com/wisconsin/rock-county
No active outages are reported by Wisconsin Power & Light Co, Rock Energy Cooperative and Wisconsin Electric Power Co in Rock County.
No live feed for Alliant Energy (Interstate Power & Light), Brodhead Water & Lighting Comm, City of Evansville and City of Stoughton - (WI): outages in theirservice area won't show here.
100%of this county's ~59,399 customers are served by utilities with a county-level live feed.
We can't see outages for: Alliant Energy (Interstate Power & Light), Brodhead Water & Lighting Comm, City of Evansville, City of Stoughton - (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 | 71,285 | 0.0% | - | - | - | |
| Rock Energy Cooperative | Live · county | 0 | 7,419 | 0.0% | - | - | - | |
| Wisconsin Electric Power Co | Live · county | 0 | - | - | - | 0 | - | |
| Alliant Energy (Interstate Power & Light) | No live feed | can't see | - | - | - | - | - | - |
| Brodhead Water & Lighting Comm | No live feed | can't see | - | - | - | - | - | - |
| City of Evansville | No live feed | can't see | - | - | - | - | - | - |
| City of Stoughton - (WI) | No live feed | can't see | - | - | - | - | - | - |
Wisconsin Power & Light Co, Rock Energy Cooperative and Wisconsin Electric Power Co 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 Rock 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 (11)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 53511 | 468 | ≤11 | 362 | ≤11 |
| 53546 | 272 | 13 | 202 | ≤11 |
| 53545 | 194 | ≤11 | 128 | ≤11 |
| 53548 | 154 | ≤11 | 114 | ≤11 |
| 53534 | 107 | ≤11 | 80 | ≤11 |
| 53563 | 87 | ≤11 | 64 | ≤11 |
| 53520 | 67 | ≤11 | 42 | ≤11 |
| 53536 | 51 | ≤11 | 32 | 0 |
| 53525 | 43 | 0 | 32 | 0 |
| 53576 | 17 | ≤11 | 12 | 0 |
| 53505 | ≤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 Rock County or any town and utility in it.
No active NWS alerts for Rock County right now.
Rock County has been under 13 National Weather Service alerts recently, most recently a Freeze Warning on October 17, 2026.
- Flood Watch ×8
- Freeze Warning ×3
- Flood Advisory ×1
- Freeze Watch ×1
Hardest-hit cities in Rock County
Where this event is concentrated across the county's towns and townships.
- Janesvilleno outage reported
Historical reliability
In 2025, the average customer in Rock County went about 1.8 hours without power. Peak simultaneous outage on record reached 12,673 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 1.8 hrs.
Worst year here was 2024 (peak 12,673 customers out) · decade average 1.6 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 751 | 9,902 | 1.8 |
| 2016 | 113 | 599 | 0.1 |
| 2017 | 503 | 4,085 | 1.2 |
| 2018 | 835 | 3,389 | 1.4 |
| 2019 | 850 | 9,625 | 1.7 |
| 2020 | 912 | 3,542 | 1.5 |
| 2021 | 936 | 3,101 | 1.6 |
| 2022 | 895 | 3,078 | 1.4 |
| 2023 | 849 | 4,700 | 2.1 |
| 2024 | 866 | 12,673 | 3.4 |
| 2025 | 885 | 2,902 | 1.8 |
Cost of power in Rock County
ENERGY & AI DEMAND →Estimated residential electricity price for Rock 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
- City of Stoughton - (WI)12.9¢8,338 cust
- Rock Energy Cooperative14.3¢7,409 cust
- City of Evansville13.2¢3,549 cust
- Brodhead Water & Lighting Comm13.5¢1,549 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 · 1.6 hrs/yr of outages over the last decade.
Power outages in Rock County: FAQ
- How often does Rock County, WI lose power?
- Based on EAGLE-I records, Rock County, WI logged 885 distinct outage events in 2025, averaging about 1.8 hours without power per customer over the year.
- What was the worst power outage in Rock County, WI?
- The largest tracked outage peaked at 12,673 customers without power, beginning July 15, 2024 and lasting about 2d 2h.
- Is there a power outage in Rock County, WI right now?
- No major outage is currently reported for Rock County, WI. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Rock County, WI?
- Tracked electric providers include Alliant Energy (Interstate Power & Light), Rock Energy Cooperative, Wisconsin Power & Light Co.
Janesville. Outage counts for these communities are reported at the Rock County level shown above.
Outages are tracked at the county level; these ZIP codes fall within Rock County.
53501, 53505, 53511, 53520, 53525, 53534, 53536, 53537, 53545, 53546, 53548, 53563, 53576
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 | - |
| Rock Energy Cooperative | 0.6 hrs | Live · county | - |
| City of Stoughton - (WI) | 0.6 hrs | No live feed | - |
| Alliant Energy (Interstate Power & Light) | - | No live feed | - |
| Wisconsin Power & Light Co | - | Live · county | - |
| Brodhead Water & Lighting Comm | - | No live feed | - |
| City of Evansville | - | 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/55105 and /api/v1/counties/55105/history.