Power Outages in Jefferson County, TN
As of the latest utility report, no major power outages are reported in Jefferson County, TN. In 2025, the average customer here lost power for about 0.9 hours.
Jefferson County, TN is served by 2 tracked utilities.
No active power outages are currently reported in Jefferson County.
No active NWS alerts for Jefferson County right now.
Jefferson County has been under 56 National Weather Service alerts recently — most recently a Special Weather Statement on August 22, 2026.
- Special Weather Statement ×18
- Flood Watch ×12
- Severe Thunderstorm Warning ×10
- Flood Advisory ×7
- Severe Thunderstorm Watch ×6
- Flash Flood Warning ×2
Hardest-hit cities in Jefferson County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Jefferson County went about 0.9 hours without power. Peak simultaneous outage on record reached 11,865 customers.
Worst year here was 2023 (peak 11,865 customers out) · decade average 3.2 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 45 | 715 | 0.1 |
| 2016 | 60 | 447 | 0.1 |
| 2017 | 94 | 2,153 | 0.8 |
| 2018 | 123 | 2,298 | 0.4 |
| 2019 | 345 | 1,667 | 1.4 |
| 2020 | 640 | 5,280 | 5.7 |
| 2021 | 339 | 4,179 | 1.1 |
| 2022 | 683 | 8,634 | 4.9 |
| 2023 | 844 | 11,865 | 11.5 |
| 2024 | 835 | 9,007 | 8.8 |
| 2025 | 446 | 3,139 | 0.9 |
Relatively Low ice storms exposure · 3.2 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, TN lose power?
- Based on EAGLE-I records, Jefferson County, TN logged 446 distinct outage events in 2025, averaging about 0.9 hours without power per customer over the year.
- What was the worst power outage in Jefferson County, TN?
- The largest tracked outage peaked at 11,865 customers without power, beginning August 7, 2023 and lasting about 3d 10h.
- Is there a power outage in Jefferson County, TN right now?
- No major outage is currently reported for Jefferson County, TN. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Jefferson County, TN?
- Tracked electric providers include CITY OF NEWPORT, KNOXVILLE UTILITIES BOARD.
Outages are tracked at the county level; these ZIP codes fall within Jefferson County.
37725, 37760, 37820, 37877, 37890
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| KNOXVILLE UTILITIES BOARD | — | ODIN ✓ | — |
| CITY OF NEWPORT | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/47089 and /api/v1/counties/47089/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Tennessee customers).