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Power Outages in Nassau County, NY

As of October 19, 2026 03:10 UTC, no outages are reported by Long Island Power Authority in Nassau County, NY. There is no live feed for Village of Freeport - (NY) and Village of Rockville Centre - (NY). In 2025, the average customer here lost power for about 1.7 hours.

Nassau County, NY is served by 3 tracked utilities.

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URL
https://massoutage.com/new-york/nassau-county
As of
October 19, 2026 03:10 UTC
Publisher
MassOutage

MassOutage, "Power Outages in Nassau County, NY", live data as of October 19, 2026 03:10 UTC. https://massoutage.com/new-york/nassau-county

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Nassau County, NY
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No outages reported

No active outages are reported by Long Island Power Authority in Nassau County.

No live feed for Village of Freeport - (NY) and Village of Rockville Centre - (NY): outages in theirservice area won't show here.

Live status by utility · Nassau County

95%of this county's ~507,626 customers are served by utilities with a county-level live feed.

Blind spots

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

UtilityFeedOutServed% outSmall outagesIncidentsUtility ETRAs of
Long Island Power AuthorityLive · county0480,0690.0%-0-
Village of Freeport - (NY)No live feedcan't see------
Village of Rockville Centre - (NY)No live feedcan't see------

Long Island Power Authority 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 Nassau County

Town-by-town counts as reported by PSEG Long Island, 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
No outages reported in any town by PSEG Long Island.
Show 3 towns with no outages
HEMPSTEADPSEG Long Island0263,6400.0%--
NORTH HEMPSTEADPSEG Long Island092,0520.0%--
OYSTER BAYPSEG Long Island0124,3770.0%--

Active outages in Nassau 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 Nassau 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
9,662
Oxygen service
651
Dialysis (facility)
1,307
Home health / hospice
2,008
By ZIP code (67)
ZIPPower-dependentVentilatorsO2 concentratorsHome dialysis
1175835721217≤11
1159029319170≤11
11554293≤11202≤11
1175629116185≤11
11550267≤11156≤11
11801255≤11160≤11
1104024718138≤11
1158023015134≤11
1156122214146≤11
1152021814111≤11
1179321318134≤11
1100321215110≤11
1157220818140≤11
11710206121360
11566205≤11124≤11
11714200≤111380
11803185≤11114≤11
11542183≤111130
11010180121140
1156317913115≤11
1157017517100≤11
11510170≤11100≤11
11530161≤11920
11783157121020
11001154≤11810
11050145≤1197≤11
11552143≤1189≤11
117911351890≤11
11553133≤1170≤11
11501126≤1172≤11
11545121≤11480
11762119≤1174≤11
11581117≤1173≤11
11021107≤1163≤11
1103098≤1149≤11
1157677≤11450
1157577≤1132≤11
1179775≤1146≤11
1151872≤11490
1175364≤11330
1177160≤1135≤11
1159860≤11330
1155958≤11320
1159656≤11390
1157754≤1130≤11
1155854≤1137≤11
1155748≤11290
11023480240
1150746≤11270
1109646≤1127≤11
1170944≤11230
1156043≤11260
1156542≤11320
1102441≤1119≤11
1151639≤11200
1151439021≤11
1180436≤1120≤11
1157931≤1117≤11
1102024≤11190
1173223≤11150
1150921≤11130
1156815≤11≤110
11765≤110≤110
11569≤11≤11≤110
11548≤11≤11≤110
11547≤110≤110
11042≤11000

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

🔔 Alerts for Nassau County, NY

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

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

No active NWS alerts for Nassau County right now.

Recent NWS alert activity · Nassau County

Nassau County has been under 65 National Weather Service alerts recently, most recently a Special Weather Statement on October 16, 2026.

  • Rip Current Statement ×18
  • High Surf Advisory ×11
  • Coastal Flood Advisory ×10
  • Coastal Flood Statement ×8
  • Coastal Flood Warning ×5
  • Wind Advisory ×3

Latest Nassau County, NY outage updates

A running log of how this outage has changed, updated automatically as utilities report in.

  1. RESOLVED

    Power restored after 15m

  2. OUTAGE BEGAN

    Outage began: 2,477 customers out (0.5% of the county)

  3. RESOLVED

    Power restored after 25m

  4. GREW

    Outage grew to 2,448 customers out (0.5% of the county)

  5. OUTAGE BEGAN

    Outage began: 724 customers out (0.2% of the county)

  6. RESOLVED

    Power restored after 1h 25m

  7. IMPROVING

    Improving: down to 286 customers out

  8. RESTORATION ETA

    Restoration now estimated September 24, 2026

Outage trend · Nassau County, NY
0customers out
Data as of Oct 19, 2026 03:00 UTC
Nassau County, NY: customers without power, last 24 hoursPeak 0 customers out; latest 0 as of Oct 19, 2026 03:00 UTC. Each point is the highest reading in its interval.00.30.50.81Oct 186 AM12 PM6 PM
Use the arrow keys to read values.
Times in EDT. Shaded stretches had no reading.

Historical reliability

In 2025, the average customer in Nassau County went about 1.7 hours without power. Peak simultaneous outage on record reached 427,483 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 1.7 hrs.

A decade of outages (2015–2025)
avg hrs without power / customer
Nassau County average outage hours per customer by year2015–2025: 2015 1.0h, 2016 3.4h, 2017 2.9h, 2018 4.3h, 2019 2.0h, 2020 32.9h, 2021 1.3h, 2022 1.3h, 2023 1.4h, 2024 1.4h, 2025 1.7h. Highlighted: 2020.0102030401.0h20153.4h20162.9h20174.3h20182.0h201932.9h20201.3h20211.3h20221.4h20231.4h20241.7h2025
Use the arrow keys to read values.

Worst year here was 2020 (peak 141,608 customers out) · decade average 4.9 hrs without power per customer/yr.

YearOutage eventsPeak customers outAvg hrs/customer
20152326,7711.0
201626632,5893.4
201731313,9032.9
201833245,9454.3
201946115,3282.0
2020493141,60832.9
20215606,5251.3
202261711,0641.3
202365820,5361.4
20246947,5751.4
2025665427,4831.7

Cost of power in Nassau County

ENERGY & AI DEMAND →

Estimated residential electricity price for Nassau 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.

26.2¢/kWh
estimated residential average
▲ 36% 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.

Worst recorded outages
STARTEDPEAK OUTDURATION
February 2, 2025427,48310h 45m
August 3, 2020141,60820d 19h
March 2, 201845,9453d 15h
February 23, 201632,5896d 17h
December 12, 202320,5361d 15h
See the biggest power outages in US history →
Natural hazards & outage risk
HIGH

Very High ice storms exposure · 4.9 hrs/yr of outages over the last decade.

Ice stormVery High
HurricaneRelatively High
Strong windRelatively High
FloodingRelatively High
TornadoRelatively Moderate
Heat waveRelatively Moderate
EarthquakeRelatively Moderate
All hazard rankings →

Power outages in Nassau County: FAQ

How often does Nassau County, NY lose power?
Based on EAGLE-I records, Nassau County, NY logged 665 distinct outage events in 2025, averaging about 1.7 hours without power per customer over the year.
What was the worst power outage in Nassau County, NY?
The largest tracked outage peaked at 427,483 customers without power, beginning February 2, 2025 and lasting about 10h 45m.
Is there a power outage in Nassau County, NY right now?
No major outage is currently reported for Nassau County, NY. Live coverage depends on whether local utilities report to ODIN.
Which utilities serve Nassau County, NY?
Tracked electric providers include Long Island Power Authority.
Nearby counties
Bronx CountyQueens CountySuffolk CountyWestchester County
Cities & towns in Nassau County

Hempstead, Freeport. Town-level outage counts are in the municipalities table above.

ZIP codes in Nassau County

Outages are tracked at the county level; these ZIP codes fall within Nassau County (showing 40 of 69).

11001, 11003, 11010, 11020, 11021, 11023, 11024, 11030, 11040, 11042, 11050, 11096, 11501, 11507, 11509, 11510, 11514, 11516, 11518, 11520, 11530, 11542, 11545, 11547, 11548, 11549, 11550, 11552, 11553, 11554, 11556, 11557, 11558, 11559, 11560, 11561, 11563, 11565, 11566, 11568

Electric providers serving this county

From EIA-861 service territory, with official reliability where reported.

ProviderOfficial SAIDI (EIA)LiveReport outage
Village of Freeport - (NY)0.2 hrsNo live feed-
Long Island Power Authority-Live · county
Map ↗
Village of Rockville Centre - (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/36059 and /api/v1/counties/36059/history.