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Power Outages in Jefferson County, NY

Is there a power outage in Jefferson County, NY right now? Yes. As of October 19, 2026 17:30 UTC, about 1 customers are without power in Jefferson County, NY across 1 reported incident. There is no live feed for Village of Philadelphia - (NY) and Village of Theresa - (NY), so outages in their service area aren't counted.

Jefferson County, NY is served by 3 tracked utilities. In 2025, the average customer here lost power for about 4.0 hours.

Cite this data
URL
https://massoutage.com/new-york/jefferson-county
As of
October 19, 2026 17:30 UTC
Publisher
MassOutage

MassOutage, "Power Outages in Jefferson County, NY", live data as of October 19, 2026 17:30 UTC. https://massoutage.com/new-york/jefferson-county

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Jefferson County, NY
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This county Loading live outagesout
Scattered outages

1 customers without power

Across 1 reported incident.

Utility ETR: October 19, 2026 19:45 UTC (utility's estimate)

Not counted: no live feed for Village of Philadelphia - (NY) and Village of Theresa - (NY).

Live data as of

Report an outage in Jefferson County, NY

Report it to your electric utility; MassOutage can't take reports. For a downed line, stay at least 35 feet away and call 911.

No outage contact on file for Village of Philadelphia - (NY) and Village of Theresa - (NY); check your electric bill or the utility's website.

Not sure which utility serves you? →

Live status by utility · Jefferson County

100%of this county's ~58,196 customers are served by utilities with a county-level live feed.

Blind spots

We can't see outages for: Village of Philadelphia - (NY), Village of Theresa - (NY). Their customers are not in any number on this page; check their own outage maps.

UtilityFeedOutServed% outSmall outagesIncidentsUtility ETRAs of
Niagara Mohawk Power Corp.Live · county158,2920.0%-1October 19, 2026 19:45 UTC
Village of Philadelphia - (NY)No live feedcan't see------
Village of Theresa - (NY)No live feedcan't see------

Niagara Mohawk Power Corp. reportsevery town in the county on each poll, so 0 out is a real all-clear. ETRs are the utility's own estimates.

Municipalities in Jefferson County

Town-by-town counts as reported by Niagara Mohawk Power Corp., most affected first. A town served by more than one utility appears once per utility; utilities without a town-level feed aren't included. Updated .

TownUtilityOutServed% outUtility ETRSmall outages
WatertownNiagara Mohawk Power Corp.115,4070.0%October 19, 2026 19:45 UTC-
Show 38 towns with no outages
AdamsNiagara Mohawk Power Corp.01,5350.0%--
Adams VillageNiagara Mohawk Power Corp.07880.0%--
AlexandriaNiagara Mohawk Power Corp.03,1700.0%--
Alexandria Bay VillageNiagara Mohawk Power Corp.08440.0%--
AntwerpNiagara Mohawk Power Corp.05480.0%--
Antwerp VillageNiagara Mohawk Power Corp.02820.0%--
Black River VillageNiagara Mohawk Power Corp.06160.0%--
BrownvilleNiagara Mohawk Power Corp.02,0220.0%--
Brownville VillageNiagara Mohawk Power Corp.04540.0%--
Cape VincentNiagara Mohawk Power Corp.02,3170.0%--
Cape Vincent VillageNiagara Mohawk Power Corp.05740.0%--
Carthage VillageNiagara Mohawk Power Corp.01,5220.0%--
ChampionNiagara Mohawk Power Corp.01,2240.0%--
Chaumont VillageNiagara Mohawk Power Corp.03550.0%--
ClaytonNiagara Mohawk Power Corp.02,7460.0%--
Clayton VillageNiagara Mohawk Power Corp.01,2060.0%--
Deferiet VillageNiagara Mohawk Power Corp.01400.0%--
Dexter VillageNiagara Mohawk Power Corp.04750.0%--
EllisburgNiagara Mohawk Power Corp.01,7800.0%--
Ellisburg VillageNiagara Mohawk Power Corp.01020.0%--
Evans Mills VillageNiagara Mohawk Power Corp.04520.0%--
Glen Park VillageNiagara Mohawk Power Corp.02200.0%--
HendersonNiagara Mohawk Power Corp.01,6780.0%--
HounsfieldNiagara Mohawk Power Corp.01,2640.0%--
Le RayNiagara Mohawk Power Corp.03,0420.0%--
LorraineNiagara Mohawk Power Corp.03920.0%--
LymeNiagara Mohawk Power Corp.02,1050.0%--
Mannsville VillageNiagara Mohawk Power Corp.01610.0%--
OrleansNiagara Mohawk Power Corp.02,5380.0%--
PameliaNiagara Mohawk Power Corp.01,5590.0%--
PhiladelphiaNiagara Mohawk Power Corp.03370.0%--
RodmanNiagara Mohawk Power Corp.05490.0%--
RutlandNiagara Mohawk Power Corp.01,0740.0%--
Sackets Harbor VillageNiagara Mohawk Power Corp.01,1030.0%--
TheresaNiagara Mohawk Power Corp.01,2410.0%--
West Carthage VillageNiagara Mohawk Power Corp.09080.0%--
WilnaNiagara Mohawk Power Corp.09470.0%--
WorthNiagara Mohawk Power Corp.06150.0%--

Active outages in Jefferson County0

No individual outages are listed by utilities with an outage-level feed right now.

Electricity-dependent residents

HHS emPOWER · data October 7, 2026

Medicare beneficiaries in Jefferson Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.

Power-dependent
1,242
Oxygen service
473
Dialysis (facility)
226
Home health / hospice
317
By ZIP code (33)
ZIPPower-dependentVentilatorsO2 concentratorsHome dialysis
13601375≤11274≤11
1362445≤1134≤11
1360544≤11340
1363440030≤11
1361234≤11270
1369129020≤11
1368527≤11190
13618250170
13656240210
1363724020≤11
1360623≤11140
1360722≤1115≤11
13673210180
13622190140
13679180170
13608150120
13615140≤110
13693≤110≤110
13682≤11≤11≤110
13661≤11≤11≤11≤11
13659≤110≤11≤11
13651≤110≤110
13650≤11≤11≤110
13643≤110≤110
13641≤110≤110
13640≤110≤110
13638≤110≤110
13636≤110≤110
13632≤11000
13628≤110≤110
13616≤11≤11≤110
13611≤110≤110
13603≤110≤110

Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.

🔔 Alerts for Jefferson County, NY

Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Jefferson County or any town and utility in it.

Get alerts for Jefferson CountySend updates to your dashboardRSS feed
◢ ACTIVE WEATHER ALERTS · NWS

No active NWS alerts for Jefferson County right now.

Outage trend · Jefferson County, NY
1customers out · peak 54
Data as of Oct 19, 2026 17:20 UTC
Jefferson County, NY: customers without power, last 24 hoursPeak 54 customers out; latest 1 as of Oct 19, 2026 17:20 UTC. Each point is the highest reading in its interval.02040606 PMOct 196 AM12 PM
Use the arrow keys to read values.
Times in EDT. Shaded stretches had no reading.

Historical reliability

In 2025, the average customer in Jefferson County went about 4.0 hours without power. Peak simultaneous outage on record reached 39,726 customers.

Official state benchmark (EIA 2025)Source: US EIA

The US EIA reports New York utilities averaged 4.0 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 4.0 hrs.

A decade of outages (2015–2025)
avg hrs without power / customer
Jefferson County average outage hours per customer by year2015–2025: 2015 1.8h, 2016 1.6h, 2017 4.3h, 2018 3.4h, 2019 4.1h, 2020 2.4h, 2021 3.3h, 2022 4.0h, 2023 1.4h, 2024 15.7h, 2025 4.0h. Highlighted: 2024.051015201.8h20151.6h20164.3h20173.4h20184.1h20192.4h20203.3h20214.0h20221.4h202315.7h20244.0h2025
Use the arrow keys to read values.

Worst year here was 2024 (peak 31,424 customers out) · decade average 4.2 hrs without power per customer/yr.

YearOutage eventsPeak customers outAvg hrs/customer
20155299,2491.8
20165216,5661.6
20175689,1184.3
201856615,9473.4
20195066,7224.1
20205689,3432.4
20215918,5293.3
202264139,7264.0
20235925,6601.4
202466131,42415.7
202566823,3064.0

Cost of power in Jefferson County

ENERGY & AI DEMAND →

Estimated residential electricity price for Jefferson County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.

19.9¢/kWh
estimated residential average
▲ 49% since 2015
vs New York avg 29.9¢
vs US avg 20.0¢
BY UTILITY · RESIDENTIAL ¢/kWh

Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom. What that adds up to each month, by state and utility: average electric bill.

Worst recorded outages
STARTEDPEAK OUTDURATION
March 2, 202239,7266h 15m
January 9, 202431,4246d 5h
April 25, 202523,30615h 15m
January 16, 201815,9472h 30m
June 19, 20229,5023h 15m
See the biggest power outages in US history →
Natural hazards & outage risk
ELEVATED

Relatively High winter weather exposure · 4.2 hrs/yr of outages over the last decade.

Ice stormRelatively Moderate
Strong windRelatively Moderate
FloodingRelatively Moderate
All hazard rankings →

Power outages in Jefferson County: FAQ

How often does Jefferson County, NY lose power?
Based on EAGLE-I records, Jefferson County, NY logged 668 distinct outage events in 2025, averaging about 4.0 hours without power per customer over the year.
What was the worst power outage in Jefferson County, NY?
The largest tracked outage peaked at 39,726 customers without power, beginning March 2, 2022 and lasting about 6h 15m.
Is there a power outage in Jefferson County, NY right now?
Yes. As of October 19, 2026 17:30 UTC, about 1 customers are without power in Jefferson County, NY across 1 reported incident. There is no live feed for Village of Philadelphia - (NY) and Village of Theresa - (NY), so outages in their service area aren't counted.
Which utilities serve Jefferson County, NY?
Tracked electric providers include Niagara Mohawk Power Corp..
Nearby counties
Cayuga CountyLewis CountyOswego CountySt. Lawrence County
ZIP codes in Jefferson County

Outages are tracked at the county level; these ZIP codes fall within Jefferson County.

13601, 13602, 13603, 13605, 13606, 13607, 13608, 13611, 13612, 13615, 13616, 13618, 13619, 13622, 13624, 13628, 13632, 13634, 13636, 13637, 13638, 13640, 13641, 13643, 13650, 13651, 13656, 13659, 13661, 13673, 13674, 13675, 13679, 13682, 13685, 13691, 13692, 13693

Electric providers serving this county

From EIA-861 service territory, with official reliability where reported. Territory is filed by county, so these are the utilities with lines anywhere in Jefferson County, not the one at a given address. All electric companies in New York →

ProviderOfficial SAIDI (EIA)LiveReport outage
Niagara Mohawk Power Corp.4.0 hrsLive · countyOutage map ↗
Village of Philadelphia - (NY)-No live feed-
Village of Theresa - (NY)-No live feed-

Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of New York customers). Machine-readable data: /api/v1/counties/36045 and /api/v1/counties/36045/history. Live data as of .