County annual report · FIPS 55083
2025 Oconto County, WI Power Outage Report
In 2025, customers in Oconto County, WI went without power for an average of 16.2 hours, a total of 433K customer-hours (Wisconsin average 3.9 hours). That ranks 9th worst of 72 Wisconsin counties and 459th of 3,000 nationally.
Compared with WI, the US and 2024
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Oconto County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 29, 2025 21:45 | April 4, 2025 07:00 | 5d 9h | 8,472 | 352K |
| 2 | February 8, 2025 07:15 | February 8, 2025 09:15 | 2h | 5,630 | 5,632 |
| 3 | June 3, 2025 22:45 | June 3, 2025 23:15 | 30m | 2,481 | 621 |
| 4 | July 23, 2025 20:30 | July 24, 2025 22:45 | 1d 2h | 2,208 | 12K |
| 5 | May 16, 2025 17:00 | May 18, 2025 20:45 | 2d 3h | 1,484 | 28K |
| 6 | March 24, 2025 01:00 | March 24, 2025 21:45 | 20h 45m | 1,243 | 5,602 |
| 7 | December 20, 2025 20:30 | December 20, 2025 22:30 | 2h | 927 | 1,778 |
| 8 | June 6, 2025 12:30 | June 6, 2025 23:30 | 11h | 615 | 1,371 |
| 9 | August 23, 2025 18:45 | August 23, 2025 21:00 | 2h 15m | 598 | 975 |
| 10 | October 10, 2025 12:45 | October 10, 2025 14:45 | 2h | 499 | 908 |
Outage episodes by size in 2025: 30 reached 100+ customers, 6 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Oconto County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Wisconsin Electric Power Co | 2024 | 4.9 hrs | 1.04 | 1.8 hrs | 0.74 |
| Wisconsin Public Service Corp | 2024 | 7.8 hrs | 1.22 | 1.6 hrs | 0.77 |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Oconto Electric Cooperative | - | - | - | - | - |
| Oconto Falls Water & Light Comm | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Wisconsin's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 26,761 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Oconto County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Oconto County, WI annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/wisconsin/oconto-county