Village of Greenwich Historic District · Photo: Doug Kerr from Upstate New York · CC BY-SA 2.0Living in Greenwich, NY: what to set up and who to call
Greenwich has its own drop-off, Greenwich Recycling Center. For emergencies, Greenwich is closest to Glens Falls Hospital, 14 miles away.
I’m new in town
What to set up in Greenwich, 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 Greenwich.
Power comes from National Grid
National Grid (Niagara Mohawk Power Corp.), an investor-owned utility, serves all of Greenwich. Its homes paid an average of 19.9¢ per kWh in 2025, about $130 a month (its average across New York, for customers on its standard service). New York lets you buy power from another supplier; 6% of National Grid’s home customers do, and National Grid still delivers it.
Start or move service: www1.nationalgridus.com · (315) 474-1511
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Greenwich Village water system
The Greenwich Village water system supplies Greenwich: about 37% of residents live in its service area. About 60% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water influenced by surface water and serves 1,665 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 2021–Dec 2023, was 3.0 ppb, below the 15 ppb action level that applied. That’s higher than 82% of similar systems’ latest results.
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. NY5700122.
5 home internet providers serve Greenwich
97% of 2,166 addresses can get 100/20 Mbps; 21% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 93% | 1,000/1,000 |
| Verizon | Fixed wireless, Fiber | 10% | 300/20 |
| SLICFiber | Fiber | 7% | 1,000/1,000 |
| Hudson Valley Wireless | Fixed wireless | 52% | 200/20 |
| T-Mobile | Fixed wireless | 45% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Greenwich has its own drop-off: Greenwich Recycling Center
Where to take trash and recycling in Greenwich, and where the rules are.
Greenwich Recycling Center
Before you go, check the rules with the town.
OpenStreetMap, as of Oct 9, 2026 (last edited Jul 2011). © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Most of Greenwich (88%) is in Greenwich Central School District; parts are in Schuylerville Central School District (7%) and Salem Central School District (3%).
BSchool 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 Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
Greenwich spans 3 ZIP codes
ZIP codes where Greenwich residents live, with the share of the town in each.
| ZIP | Post office name | Share of Greenwich | ZIP’s residents in Greenwich |
|---|---|---|---|
| 12834 | Greenwich, NY | 90% | 68% |
| 12823 | Cossayuna, NY | 5% | 100% |
| 12865 | Salem, NY | 5% | 7% |
A few homes fall in 12809.
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 Greenwich
Who supplies Greenwich’s drinking water, and has it had violations?
The Greenwich Village water system (EPA ID NY5700122). 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 3.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Greenwich?
National Grid (Niagara Mohawk Power Corp.), an investor-owned utility. Its homes paid about 19.9¢ per kWh in 2025 (EIA).
What internet providers serve Greenwich?
Spectrum, Verizon, SLICFiber, Hudson Valley Wireless, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Greenwich?
12834 (90%), 12823 (5%), 12865 (5%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Greenwich in?
Greenwich Central School District. Parts of the city are in Schuylerville Central School District and Salem Central School District.
How do I register to vote in Greenwich?
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 Washington 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.