Photo: ajay_suresh · CC BY 2.0Living in New Castle, NY: what to set up and who to call
New Castle spans 4 ZIP codes; 10514 holds the most residents (61%). Trains stop in New Castle, at Chappaqua.
I’m new in town
What to set up in New Castle, 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 New Castle.
Power comes from Con Edison
Con Edison (Consolidated Edison Co. of New York), an investor-owned utility, serves all of New Castle. Its homes paid an average of 36.7¢ per kWh in 2025, about $137 a month (its average across New York, for customers on its standard service). New York lets you buy power from another supplier; 10% of Con Edison’s home customers do, and Con Edison still delivers it.
Start or move service: coned.com · (800) 752-6633
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from New Castle/Stanwood W.d. water system
The New Castle/Stanwood W.d. water system supplies New Castle: about 91% of residents live in its service area. About 7% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists the New York City water system and New York City - Croton System as sellers) and serves 17,116 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 83% of the 3,525 systems serving 10,001–50,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2026, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 1.0 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. Violations are counted by the start of their compliance period. NY5903442.
3 home internet providers serve New Castle
99% of 5,463 addresses can get 100/20 Mbps; 95% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Verizon | Fiber, Fixed wireless | 98% | 2,300/2,300 |
| Optimum | Cable, Fiber | 97% | 8,000/8,000 |
| T-Mobile | Fixed wireless | 31% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in New Castle is any weekday, depending on your street
Pickup days, the drop-off and recycling in New Castle, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s day (any weekday)Look up your day on mynewcastleny.gov
New Castle Drop-off
210 Joan Corwin Way, Chappaqua, NY 10514
- Tue7 am–2:30 pm
- Wed7 am–2:30 pm
- Thu7 am–2:30 pm
- Fri7 am–2:30 pm
- Sat7 am–2:30 pm
Dual-stream recycling
Paper goes out separately from bottles and cans.
- Glass bottles - food bottles and jars, wine bottles, beer bottles (remove caps)
- Metals - aluminum and tin cans, empty aerosol cans
- Plastic - All plastic numbered 1 through 6
- Cardboard - broken down no larger than 4 feet by 4 feet
- Newspaper and magazines - bundled and tied or in a separate paper bag
New Castle Recycling Center
210 Joan Corwin Way, Chappaqua, NY 10514
From mynewcastleny.gov, the town’s official site, checked Oct 21, 2026; pages dated 2026, 2026-09-27. 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 New Castle (73%) is in Chappaqua Central School District; parts are in Ossining Union Free School District (17%) and Bedford Central School District (6%) and Yorktown Central School District (3%).
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 Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
New Castle spans 4 ZIP codes
ZIP codes where New Castle residents live, with the share of the town in each.
| ZIP | Post office name | Share of New Castle | ZIP’s residents in New Castle |
|---|---|---|---|
| 10514 | Chappaqua, NY | 61% | 89% |
| 10549 | Mount Kisco, NY | 22% | 24% |
| 10562 | Ossining, NY | 8% | 4% |
| 10546 | Millwood, NY | 8% | 100% |
A few homes fall in 10510, 10504, 10520.
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.
Train: OpenStreetMap (© OpenStreetMap contributors). ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in New Castle
Who supplies New Castle’s drinking water, and has it had violations?
The New Castle/Stanwood W.d. water system (EPA ID NY5903442). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan–Dec 2026), against a 15 ppb action level.
Who provides electricity in New Castle?
Con Edison (Consolidated Edison Co. of New York), an investor-owned utility. Its homes paid about 36.7¢ per kWh in 2025 (EIA).
What internet providers serve New Castle?
Verizon, Optimum, T-Mobile (FCC, as of December 2025).
What ZIP codes are in New Castle?
10514 (61%), 10549 (22%), 10562 (8%), 10546 (8%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is New Castle in?
Chappaqua Central School District. Parts of the city are in Ossining Union Free School District and Bedford Central School District and Yorktown Central School District.
How do I register to vote in New Castle?
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 Westchester 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: New Castle’s own website (mynewcastleny.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.