Jefferson County, TN Power Outages
As of Nov 3, 12:45 AM EST, no power outages were reported in Jefferson County, Tennessee by Knoxville Utilities Board.
Jefferson County on the Tennessee outage map
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- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Jefferson County power outage history
Every significant outage recorded in Jefferson County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 156 significant power outages in Jefferson County, meaning events that left at least 1% of customers in the dark. The largest (Aug 7–9, 2023) came when severe thunderstorms left 11,865 customers (36.6% of the county) without power.
From 2018 to 2025, the average customer here lost about 4 hr 20 min of power per year, less than the Tennessee average of 5 hr 20 min. That ranks 39th of 88 Tennessee counties for outage time, where 1st has the most.
August is the riskiest month: it accounted for 22% of all customer outage time from 2018 to 2025. On 55 days in that period, at least 5% of customers were out at the same time. Outage time in Jefferson County has risen recently: about 6 hr 31 min per customer per year in 2022–2025, versus 2 hr 8 min in 2018–2021.
The most recent significant outage on record (Oct 1, 2025) affected 3,139 customers (9.7%).
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Aug 7–9, 2023 | 11,865(36.6%) | 3 | Severe thunderstorms |
| 2 | Nov 29, 2023 | 9,721(30%) | 1 | No major storm reported |
| 3 | Sep 25–29, 2024 | 9,007(27.8%) | 5 | Flooding |
| 4 | Dec 23–24, 2022 | 8,634(26.6%) | 2 | Winter Storm Elliott |
| 5 | Apr 1–2, 2023 | 8,009(24.7%) | 2 | Severe thunderstorms |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in Jefferson County?
Electric companies with service territory in Jefferson County (EIA-861, 2025)
| Utility | Type | Customers (TN) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Knoxville Utilities Board (KUB) | Municipal | 225,030 | Reporting | |
| Appalachian Electric Coop | Cooperative | 52,126 | Not reporting | |
| City of Newport - (TN) | Municipal | 23,676 | Not reporting |
Customer counts are each utility's statewide total in Tennessee. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Jefferson County outage headlines in the past week.
Nearby counties
Jefferson County power outage FAQ
Is the power out in Jefferson County right now?
No outages are currently reported for Jefferson County by participating utilities. If your power is out, report it to your electric company.
Which electric company serves Jefferson County?
According to EIA-861 service territory data, Knoxville Utilities Board, Appalachian Electric Coop, City of Newport - (TN) provide electric service in Jefferson County, Tennessee.
What was the worst power outage in Jefferson County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Aug 7–9, 2023. It peaked at 11,865 customers without power (36.6% of the county). NOAA storm reports for that period point to severe thunderstorms.
How often does the power go out in Jefferson County?
EAGLE-I has recorded 156 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 4 hr 20 min of power per year, and on 55 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "Jefferson County, TN Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/tennessee/jefferson-county