Living in Madaket, MA: what to set up and who to call
Madaket has no town government of its own, so Nantucket County runs its elections and most services, and its children attend Nantucket School District. Most of Madaket has one wired internet choice: Xfinity.
I’m new in town
What to set up in Madaket, 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 Madaket.
Power comes from Nantucket Electric
Nantucket Electric (Nantucket Electric Co), an investor-owned utility, serves all of Madaket. Its homes paid an average of 35.9¢ per kWh in 2025, about $295 a month (its average across Massachusetts, for customers on its standard service). Massachusetts lets you buy power from another supplier; 83% of Nantucket Electric’s home customers do, and Nantucket Electric still delivers it.
Start or move service: www.nationalgrid.com · (800) 465-1212
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Wannacomet Water Company
Wannacomet Water Company supplies Madaket: about 94% of residents live in its service area. About 6% 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 27,703 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 2023–Dec 2025, was 2.0 ppb, below the 15 ppb action level that applied. That’s higher than 65% 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. MA4197000.
4 home internet providers serve Madaket
99% of 573 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| AT&T | Fixed wireless | 16% | 25/3 |
| T-Mobile | Fixed wireless | 13% | 100/20 |
| Verizon | Fixed wireless | 11% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Madaket’s trash rules yet
Pickup rules, the dump and recycling in Madaket.
Where your child goes to school
Public school districts and the school path by grade.
Madaket is in Nantucket School District.
Test scores and every school: see Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Madaket is unincorporated, so Nantucket County is the local government.
Election office: FVAP local election office directory, updated Jun 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Madaket is in ZIP code 02554
ZIP codes where Madaket residents live, with the share of the town in each.
| ZIP | Post office name | Share of Madaket | ZIP’s residents in Madaket |
|---|---|---|---|
| 02554 | Nantucket, MA | 100% | 3% |
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 Madaket
Who supplies Madaket’s drinking water, and has it had violations?
Wannacomet Water Company (EPA ID MA4197000). 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 2.0 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Madaket?
Nantucket Electric (Nantucket Electric Co), an investor-owned utility. Its homes paid about 35.9¢ per kWh in 2025 (EIA).
What internet providers serve Madaket?
Xfinity, AT&T, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Madaket?
02554. Census 2020 ZIP Code Tabulation Areas.
What school district is Madaket in?
Nantucket School District.
How do I register to vote in Madaket?
In Massachusetts you can register online until 10 days before Election Day, in person until 10 days before Election Day, or by mail (postmarked 10 days before). Elections here are run by the Nantucket Town Clerk. Check your registration at sec.state.ma.us.
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 Nov 18, 2024 (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.