County annual report · FIPS 29185
2025 St. Clair County, MO Power Outage Report
In 2025, customers in St. Clair County, MO went without power for an average of 31.7 hours, a total of 122K customer-hours (Missouri average 8.9 hours). That ranks 11th worst of 115 Missouri counties and 174th of 3,000 nationally.
Compared with MO, the US and 2024
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in St. Clair 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 19, 2025 22:00 | May 24, 2025 04:30 | 4d 6h | 2,667 | 94K |
| 2 | March 28, 2025 12:45 | March 28, 2025 14:30 | 1h 45m | 864 | 492 |
| 3 | March 13, 2025 17:15 | March 13, 2025 18:00 | 45m | 639 | 320 |
| 4 | April 20, 2025 20:30 | April 21, 2025 17:45 | 21h 15m | 589 | 2,117 |
| 5 | April 30, 2025 23:00 | May 1, 2025 02:45 | 3h 45m | 583 | 2,035 |
| 6 | June 27, 2025 04:00 | June 27, 2025 07:00 | 3h | 553 | 1,164 |
| 7 | June 3, 2025 23:15 | June 4, 2025 16:30 | 17h 15m | 487 | 1,608 |
| 8 | March 23, 2025 21:45 | March 24, 2025 02:30 | 4h 45m | 458 | 1,550 |
| 9 | December 17, 2025 15:15 | December 17, 2025 17:45 | 2h 30m | 419 | 943 |
| 10 | March 14, 2025 18:45 | March 15, 2025 03:15 | 8h 30m | 387 | 1,134 |
Outage episodes by size in 2025: 33 reached 100+ customers, 1 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 St. Clair 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 |
|---|---|---|---|---|---|
| Evergy Metro | 2024 | 6.0 hrs | 1.52 | 83 min | 0.93 |
| Evergy Missouri West | 2024 | 5.1 hrs | 1.85 | 2.0 hrs | 1.25 |
| Empire District Electric Co | 2024 | 9.1 hrs | 1.95 | 1.9 hrs | 0.98 |
| Southwest Electric Coop, Inc | 2024 | 4.1 hrs | 0.84 | 3.1 hrs | 0.79 |
| Sac-Osage Electric Coop Inc | - | - | - | - | - |
| Osage Valley Elec Coop Assn | - | - | - | - | - |
| City of Osceola - (MO) | - | - | - | - | - |
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 Missouri's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,837 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. St. Clair County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Clair County, MO 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/missouri/st-clair-county