County annual report · FIPS 18057
2025 Hamilton County, IN Power Outage Report
In 2025, customers in Hamilton County, IN went without power for an average of 3.2 hours, a total of 507K customer-hours (Indiana average 6.4 hours). That ranks 54th worst of 92 Indiana counties and 2000th of 3,000 nationally.
Compared with IN, the US and 2024
Coverage line is EAGLE-I's share of Indiana customers tracked each year.
Biggest outages in Hamilton 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 16, 2025 23:00 | May 18, 2025 19:45 | 1d 20h | 13,369 | 72K |
| 2 | April 2, 2025 19:30 | April 6, 2025 01:15 | 3d 5h | 11,997 | 93K |
| 3 | June 18, 2025 17:45 | June 23, 2025 05:45 | 4d 12h | 11,964 | 111K |
| 4 | August 16, 2025 20:45 | August 18, 2025 09:15 | 1d 12h | 7,417 | 44K |
| 5 | May 8, 2025 04:15 | May 8, 2025 20:45 | 16h 30m | 5,180 | 19K |
| 6 | May 12, 2025 16:45 | May 12, 2025 20:45 | 4h | 5,054 | 2,532 |
| 7 | March 30, 2025 21:45 | March 31, 2025 02:15 | 4h 30m | 3,918 | 4,860 |
| 8 | March 19, 2025 22:45 | March 20, 2025 05:30 | 6h 45m | 2,610 | 16K |
| 9 | October 14, 2025 13:15 | October 14, 2025 18:45 | 5h 30m | 2,533 | 2,548 |
| 10 | September 18, 2025 10:45 | September 18, 2025 11:45 | 1h | 2,524 | 653 |
Outage episodes by size in 2025: 97 reached 100+ customers, 33 reached 1,000+ customers, 3 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 Hamilton 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 |
|---|---|---|---|---|---|
| Duke Energy Indiana, LLC | 2024 | 4.9 hrs | 1.18 | 1.9 hrs | 0.94 |
| Indiana Michigan Power Co | 2024 | 4.3 hrs | 1.25 | 2.5 hrs | 1.08 |
| AES Indiana | 2024 | 4.1 hrs | 1.25 | 87 min | 1.06 |
| Boone County Rural EMC | 2024 | 60 min | 0.66 | 60 min | 0.66 |
| Duke Energy | - | - | - | - | - |
| City of Frankfort - (IN) | - | - | - | - | - |
| NineStar Connect | - | - | - | - | - |
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 Indiana's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 159,187 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. Hamilton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hamilton County, IN 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/indiana/hamilton-county