County annual report · FIPS 40069
2025 Johnston County, OK Power Outage Report
In 2025, customers in Johnston County, OK went without power for an average of 12.1 hours, a total of 85K customer-hours (Oklahoma average 4.9 hours). That ranks 12th worst of 77 Oklahoma counties and 646th of 3,000 nationally.
Compared with OK, the US and 2024
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Johnston 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 | May 18, 2025 00:45 | May 18, 2025 17:45 | 17h | 3,098 | 14K |
| 2 | May 19, 2025 00:45 | May 21, 2025 14:00 | 2d 13h | 2,694 | 16K |
| 3 | April 27, 2025 16:00 | April 27, 2025 20:30 | 4h 30m | 2,611 | 3,284 |
| 4 | April 20, 2025 03:30 | April 21, 2025 00:00 | 20h 30m | 1,218 | 4,160 |
| 5 | September 12, 2025 01:30 | September 12, 2025 06:45 | 5h 15m | 1,074 | 5,544 |
| 6 | June 9, 2025 02:00 | June 9, 2025 22:45 | 20h 45m | 857 | 11K |
| 7 | June 25, 2025 21:45 | June 26, 2025 00:00 | 2h 15m | 621 | 893 |
| 8 | March 4, 2025 11:15 | March 6, 2025 14:30 | 2d 3h | 584 | 4,312 |
| 9 | May 26, 2025 01:45 | May 26, 2025 21:15 | 19h 30m | 507 | 2,556 |
| 10 | June 3, 2025 19:30 | June 4, 2025 18:15 | 22h 45m | 505 | 1,723 |
Outage episodes by size in 2025: 35 reached 100+ customers, 5 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 Johnston 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 |
|---|---|---|---|---|---|
| Public Service Co of Oklahoma | 2024 | 3.1 hrs | 1.55 | 1.9 hrs | 1.30 |
| Southeastern Electric Coop Inc - (OK) | 2024 | 5.4 hrs | 2.25 | 4.2 hrs | 1.00 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| People's Electric Cooperative | - | - | - | - | - |
| Red River Valley Rrl Elec Assn | - | - | - | - | - |
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 Oklahoma's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,045 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. Johnston County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Johnston County, OK 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/oklahoma/johnston-county