Living in East Williston, NY: what to set up and who to call
Tap water in East Williston comes from the East Williston (V) water system, which has a clean five-year EPA record (about 22% of systems its size had a health-based violation) and a latest lead result below detection. Power in East Williston comes from PSEG Long Island, a state utility rather than a private company.
I’m new in town
What to set up in East Williston, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in East Williston.
Power comes from PSEG Long Island
PSEG Long Island (Long Island Power Authority), a state utility, serves all of East Williston. Its homes paid an average of 26.2¢ per kWh in 2025, about $195 a month (its average across New York, for customers on its standard service). New York lets you buy power from another supplier; 0% of PSEG Long Island’s home customers do, and PSEG Long Island still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from East Williston (V) water system
The East Williston (V) water system supplies East Williston: about 93% of residents live in its service area. About 3% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated ground water (EPA lists Williston Park (V) as seller) and serves 2,556 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 7,966 systems serving 1,001–3,300 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 2.9 ppb. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
The system’s full record: EPA ECHO report
EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0 (EPA’s estimate). Violations are counted by the start of their compliance period. NY2902820.
3 home internet providers serve East Williston
100% of 858 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Verizon | Fiber | 99% | 2,300/2,300 |
| Optimum | Cable, Fiber | 98% | 8,000/8,000 |
| T-Mobile | Fixed wireless | 70% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have East Williston’s trash rules yet
Pickup rules, the dump and recycling in East Williston.
Where your child goes to school
Public school districts and the school path by grade.
East Williston is in East Williston Union Free School District.
A+School gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Jul 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
East Williston is in ZIP code 11596
ZIP codes where East Williston residents live, with the share of the town in each.
| ZIP | Post office name | Share of East Williston | ZIP’s residents in East Williston |
|---|---|---|---|
| 11596 | Williston Park, NY | 100% | 24% |
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in East Williston
Who supplies East Williston’s drinking water, and has it had violations?
The East Williston (V) water system (EPA ID NY2902820). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in East Williston?
PSEG Long Island (Long Island Power Authority), a state utility. Its homes paid about 26.2¢ per kWh in 2025 (EIA).
What internet providers serve East Williston?
Verizon, Optimum, T-Mobile (FCC, as of December 2025).
What ZIP codes are in East Williston?
11596. Census 2020 ZIP Code Tabulation Areas.
What school district is East Williston in?
East Williston Union Free School District.
How do I register to vote in East Williston?
In New York you can register online until 10 days before Election Day, in person until 10 days before Election Day, or by mail (postmarked 15 days before and received 10 days before). Elections here are run by the Nassau County Board of Elections. Check your registration at voterlookup.elections.ny.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
- Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
- Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
- ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
- Schools: NCES Common Core of Data, 2024–25.
- Registration: vote.gov, updated Aug 3, 2026 (read Oct 10, 2026). Official sites and area codes: Wikidata.
- Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
- Internet: FCC National Broadband Map, as of December 2025.