Photo: WalkingGeek from Westport, CT, USA · CC BY 2.0Living in Mamaroneck, NY: what to set up and who to call
An EPA health-based violation from 1993 is still open for Westchester Joint Water Works, which supplies Mamaroneck. Mamaroneck has its own drop-off, Village of Mamaroneck Department of Public Works, on 313 Fayette Avenue.
I’m new in town
What to set up in Mamaroneck, 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 Mamaroneck.
Power comes from Con Edison
Con Edison (Consolidated Edison Co. of New York), an investor-owned utility, serves all of Mamaroneck. 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 Westchester Joint Water Works
Westchester Joint Water Works supplies almost all of Mamaroneck. It draws surface water (EPA lists the New York City water system as seller) and serves 59,629 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 90% of the 597 systems serving 50,001–100,000 people. 1 older violation is still open, since 1993: a surface water treatment requirement (Surface Water Treatment Rule), per EPA’s records.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2026–Dec 2028, was 3.0 ppb, below the 15 ppb action level that applied. The highest in five years was 10.7 ppb. That’s higher than 81% 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. Violations are counted by the start of their compliance period. NY5903435.
3 home internet providers serve Mamaroneck
98% of 4,156 addresses can get 100/20 Mbps; 97% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Verizon | Fiber, Fixed wireless | 97% | 980/880 |
| Optimum | Cable, Fiber | 94% | 8,000/8,000 |
| T-Mobile | Fixed wireless | 59% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Mamaroneck has its own drop-off: Village of Mamaroneck Department of Public Works
Where to take trash and recycling in Mamaroneck, and where the rules are.
Village of Mamaroneck Department of Public Works
313 Fayette Avenue, Mamaroneck, NY, 10543
Before you go, check the rules on townofmamaroneck.org.
OpenStreetMap, as of Oct 9, 2026 (last edited Sep 2020). © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Most of Mamaroneck (64%) is in Mamaroneck Union Free School District; parts are in Rye Neck Union Free School District (36%).
ASchool 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.
Mamaroneck is in ZIP code 10543
ZIP codes where Mamaroneck residents live, with the share of the town in each.
| ZIP | Post office name | Share of Mamaroneck | ZIP’s residents in Mamaroneck |
|---|---|---|---|
| 10543 | Mamaroneck, NY | 99% | 94% |
A few homes fall in 10538, 10580, 10528.
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 Mamaroneck
Who supplies Mamaroneck’s drinking water, and has it had violations?
Westchester Joint Water Works (EPA ID NY5903435). It reported no health-based violations to EPA in the five years to October 2026; 90% of systems its size had none. Its latest lead 90th percentile was 3.0 ppb (Jan 2026–Dec 2028), against a 15 ppb action level.
Who provides electricity in Mamaroneck?
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 Mamaroneck?
Verizon, Optimum, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Mamaroneck?
10543. Census 2020 ZIP Code Tabulation Areas.
What school district is Mamaroneck in?
Mamaroneck Union Free School District. Parts of the city are in Rye Neck Union Free School District.
How do I register to vote in Mamaroneck?
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: 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.