Living in Greenfield, NY: what to set up and who to call
Most mail in Greenfield goes to 12833 (55% of residents), one of 4 ZIP codes in town. Saratoga Hospital, 5.3 miles away, is the nearest emergency room.
I’m new in town
What to set up in Greenfield, 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 Greenfield.
Power comes from National Grid
National Grid (Niagara Mohawk Power Corp.), an investor-owned utility, serves all of Greenfield. 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 Brookview MHP
Brookview MHP supplies Greenfield: about 2% of residents live in its service area. About 87% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 337 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 77% of the 15,074 systems serving 101–500 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 0.0 ppb, below the 15 ppb action level that applied. 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. NY4501803.
4 home internet providers serve Greenfield
97% of 3,341 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 97% | 1,000/50 |
| Verizon | Fixed wireless | 18% | 300/20 |
| T-Mobile | Fixed wireless | 17% | 100/20 |
| Hudson Valley Wireless | Fixed wireless | 3% | 50/5 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in Greenfield
Pickup days, the drop-off and recycling in Greenfield, from the town’s own site.
Highway Department garage (Town Cleanup Weekends drop-off)
409 Bockes Road, Porter Corners, NY 12859
We couldn’t find its opening hours.
Cost: Resident card is free of charge (obtained at Town Clerk's Office)
From greenfieldny.gov, the town’s official site, checked Oct 21, 2026; pages dated 2026-05-13, 2026-09-16. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Most of Greenfield (84%) is in Saratoga Springs City School District; parts are in Corinth Central School District (16%).
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 Oct 2022; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
Greenfield spans 4 ZIP codes
ZIP codes where Greenfield residents live, with the share of the town in each.
| ZIP | Post office name | Share of Greenfield | ZIP’s residents in Greenfield |
|---|---|---|---|
| 12833 | Greenfield Center, NY | 55% | 94% |
| 12859 | Porter Corners, NY | 18% | 70% |
| 12850 | Middle Grove, NY | 15% | 44% |
| 12866 | Saratoga Springs, NY | 12% | 2% |
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 Greenfield
Who supplies Greenfield’s drinking water, and has it had violations?
Brookview MHP (EPA ID NY4501803). It reported no health-based violations to EPA in the five years to October 2026; 77% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Greenfield?
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 Greenfield?
Spectrum, Verizon, T-Mobile, Hudson Valley Wireless (FCC, as of December 2025).
What ZIP codes are in Greenfield?
12833 (55%), 12859 (18%), 12850 (15%), 12866 (12%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Greenfield in?
Saratoga Springs City School District. Parts of the city are in Corinth Central School District.
How do I register to vote in Greenfield?
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 Saratoga 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: Greenfield’s own website (greenfieldny.gov), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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.