Power Outages in Jefferson County, KY
As of July 18, 2026 18:54 UTC, about 119 customers are without power in Jefferson County, KY across 1 reported incident. In 2025, the average customer here lost power for about 4.6 hours.
Jefferson County, KY is served by 1 tracked utility.
No active NWS alerts for Jefferson County right now.
Jefferson County has been under 6 National Weather Service alerts recently — most recently a Special Weather Statement on July 18, 2026.
- Flood Watch ×3
- Special Weather Statement ×3
Hardest-hit cities in Jefferson County
Where this event is concentrated across the county's towns and townships.
Live outage counts are tracked at the county level; a city-by-city split within Jefferson Countyisn't available yet.
Historical reliability
In 2025, the average customer in Jefferson County went about 4.6 hours without power. Peak simultaneous outage on record reached 141,810 customers.
Worst year here was 2023 (peak 82,578 customers out) · decade average 4.7 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 869 | 15,233 | 1.8 |
| 2016 | 817 | 13,087 | 1.4 |
| 2017 | 860 | 11,527 | 1.4 |
| 2018 | 670 | 79,447 | 8.9 |
| 2019 | 630 | 65,587 | 2.3 |
| 2020 | 689 | 27,133 | 1.6 |
| 2021 | 690 | 9,673 | 1.7 |
| 2022 | 745 | 20,898 | 3.0 |
| 2023 | 726 | 82,578 | 18.0 |
| 2024 | 647 | 54,284 | 6.8 |
| 2025 | 574 | 141,810 | 4.6 |
Very High tornadoes exposure · 4.7 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability relatively moderate — outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Jefferson County: FAQ
- How often does Jefferson County, KY lose power?
- Based on EAGLE-I records, Jefferson County, KY logged 574 distinct outage events in 2025, averaging about 4.6 hours without power per customer over the year.
- What was the worst power outage in Jefferson County, KY?
- The largest tracked outage peaked at 141,810 customers without power, beginning November 4, 2025 and lasting about 33d 23h.
- Is there a power outage in Jefferson County, KY right now?
- Yes — about 119 customers are currently without power across 1 reported incident(s).
- Which utilities serve Jefferson County, KY?
- Tracked electric providers include Kentucky (statewide).
Louisville. Outage counts for these communities are reported at the Jefferson County level shown above.
Outages are tracked at the county level; these ZIP codes fall within Jefferson County.
40023, 40025, 40041, 40118, 40202, 40203, 40204, 40205, 40206, 40207, 40208, 40209, 40210, 40211, 40212, 40213, 40214, 40215, 40216, 40217, 40218, 40219, 40220, 40221, 40222, 40223, 40228, 40229, 40231, 40241, 40242, 40243, 40245, 40258, 40272, 40280, 40291, 40299
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Kentucky (statewide) | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/21111 and /api/v1/counties/21111/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Kentucky customers). Live data as of .