Nassau County, NY Power Outages
Utilities serving Nassau County, New York don't yet share live outage data with DOE's ODIN feed. Check your electric company's outage map (listed below) for real-time status.
Nassau County on the New York outage map
- Normal
- Minor
- Moderate
- Major
- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Nassau County power outage history
Every significant outage recorded in Nassau County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 89 significant power outages in Nassau County, meaning events that left at least 1% of customers in the dark. The largest (Feb 2, 2025) left 457,901 customers (100% of the county) without power. NOAA recorded no major storm in the area at the time.
From 2018 to 2025, the average customer here lost about 5 hr 49 min of power per year, more than the New York average of 4 hr 22 min. That ranks 32nd of 62 New York counties for outage time, where 1st has the most.
August is the riskiest month: it accounted for 70% of all customer outage time from 2018 to 2025. On 11 days in that period, at least 5% of customers were out at the same time. Outage time in Nassau County has fallen recently: about 1 hr 29 min per customer per year in 2022–2025, versus 10 hr 8 min in 2018–2021.
The most recent significant outage on record (Dec 30, 2025) affected 5,211 customers (1.2%) amid a winter storm.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Feb 2, 2025 | 457,901(100%) | 1 | No major storm reported |
| 2 | Aug 4–13, 2020 | 141,608(33.1%) | 10 | Severe thunderstorms |
| 3 | Mar 2–4, 2018 | 45,945(10.7%) | 3 | Winter storm |
| 4 | Feb 25, 2016 | 32,589(7.6%) | 1 | Severe thunderstorms |
| 5 | Dec 12, 2023 | 20,536(4.8%) | 1 | Winter storm |
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 Nassau County?
Electric companies with service territory in Nassau County (EIA-861, 2025)
| Utility | Type | Customers (NY) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| PSEG Long Island | State | 1,166,171 | Not reporting | |
| Village of Freeport - (NY) | Municipal | 15,796 | Not reporting | |
| Village of Rockville Centre - (NY) | Municipal | 10,782 | Not reporting |
Customer counts are each utility's statewide total in New York. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Nassau County outage headlines in the past week.
Cities in Nassau County
Hempstead, Freeport, Valley Stream, Long Beach, Glen Cove, Rockville Centre, Garden, Mineola, Lynbrook, Massapequa Park
Nearby counties
Nassau County power outage FAQ
Is the power out in Nassau County right now?
No outages are currently reported for Nassau County by participating utilities. Live coverage is limited here, so If your power is out, report it to your electric company.
Which electric company serves Nassau County?
According to EIA-861 service territory data, Long Island Power Authority, Village of Freeport - (NY), Village of Rockville Centre - (NY) provide electric service in Nassau County, New York.
What was the worst power outage in Nassau County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Feb 2, 2025. It peaked at 457,901 customers without power (100% of the county). NOAA storm reports for that period point to no major storm reported.
How often does the power go out in Nassau County?
EAGLE-I has recorded 89 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 5 hr 49 min of power per year, and on 11 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. "Nassau County, NY Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/new-york/nassau-county