Power Outages in Sullivan County, TN
As of July 18, 2026 18:54 UTC, about 8 customers are without power in Sullivan County, TN across 1 reported incident. In 2025, the average customer here lost power for about 2.7 hours.
Sullivan County, TN is served by 1 tracked utility.
No active NWS alerts for Sullivan County right now.
Sullivan County has been under 11 National Weather Service alerts recently — most recently a Flood Advisory on July 18, 2026.
- Flood Watch ×7
- Flood Advisory ×2
- Special Weather Statement ×2
Hardest-hit cities in Sullivan 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 Sullivan Countyisn't available yet.
Historical reliability
In 2025, the average customer in Sullivan County went about 2.7 hours without power. Peak simultaneous outage on record reached 21,584 customers.
Worst year here was 2024 (peak 21,584 customers out) · decade average 5.2 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 684 | 2,843 | 2.2 |
| 2016 | 645 | 7,183 | 5.3 |
| 2017 | 587 | 3,170 | 2.3 |
| 2018 | 725 | 12,117 | 9.9 |
| 2019 | 654 | 2,450 | 3.1 |
| 2020 | 660 | 5,459 | 3.7 |
| 2021 | 725 | 3,341 | 2.5 |
| 2022 | 738 | 3,516 | 5.2 |
| 2023 | 871 | 15,053 | 6.6 |
| 2024 | 866 | 21,584 | 13.6 |
| 2025 | 955 | 4,206 | 2.7 |
Relatively High high winds exposure · 5.2 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 Sullivan County: FAQ
- How often does Sullivan County, TN lose power?
- Based on EAGLE-I records, Sullivan County, TN logged 955 distinct outage events in 2025, averaging about 2.7 hours without power per customer over the year.
- What was the worst power outage in Sullivan County, TN?
- The largest tracked outage peaked at 21,584 customers without power, beginning September 23, 2024 and lasting about 11d 12h.
- Is there a power outage in Sullivan County, TN right now?
- Yes — about 8 customers are currently without power across 1 reported incident(s).
- Which utilities serve Sullivan County, TN?
- Tracked electric providers include Appalachian Power.
Kingsport. Outage counts for these communities are reported at the Sullivan County level shown above.
Outages are tracked at the county level; these ZIP codes fall within Sullivan County.
37617, 37618, 37620, 37660, 37663, 37664, 37665, 37686
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Appalachian Power | — | ODIN ✓ |
Machine-readable data: /api/v1/counties/47163 and /api/v1/counties/47163/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Tennessee customers). Live data as of .