Photo: Craig Michaud at English Wikipedia · CC BY 3.0Living in Mason, NH: what to set up and who to call
The latest lead test reported by Greenville Water Dept, which supplies Mason, came in at 110.0 ppb (Jan 2022–Dec 2024), above the 15 ppb action level. Elections in Mason are run by Mason itself; register with the town clerk of Mason.
I’m new in town
What to set up in Mason, 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 Mason.
Power comes from Eversource
Eversource (Public Service Co. of New Hampshire), an investor-owned utility, serves all of Mason. Its homes paid an average of 24.2¢ per kWh in 2025, about $150 a month (its average across New Hampshire, for customers on its standard service). New Hampshire lets you buy power from another supplier; 43% of Eversource’s home customers do, and Eversource still delivers it.
Start or move service: eversource.com · (800) 662-7764
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Greenville Water Dept
Greenville Water Dept supplies Mason: about 0% of residents live in its service area. About 100% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws surface water and serves 1,100 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 2022–Dec 2024, was 110.0 ppb, above the 15 ppb action level that applied. That’s higher than 100% 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. NH0991010.
4 home internet providers serve Mason
96% of 631 addresses can get 100/20 Mbps; 96% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Fidium Fiber | Fiber | 92% | 2,000/2,000 |
| TDS Telecom | Fiber | 4% | 1,000/1,000 |
| T-Mobile | Fixed wireless | 17% | 25/3 |
| Verizon | Fixed wireless | 3% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
The nearest public drop-off is 4 miles away
Pickup rules, the dump and recycling in Mason.
Brookline Transfer Station
38 North Mason Road, Brookline, NH, 03033 · run by Town Of Brookline
This isn’t Mason’s own facility. Whether Mason residents may use it is the town’s rule: check masonnh.us.
OpenStreetMap, as of Oct 9, 2026. © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Mason is in Mason School District.
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 Nov 19, 2024.
Mason spans 2 ZIP codes
ZIP codes where Mason residents live, with the share of the town in each.
| ZIP | Post office name | Share of Mason | ZIP’s residents in Mason |
|---|---|---|---|
| 03048 | Greenville, NH | 95% | 41% |
| 03086 | Wilton, NH | 5% | 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 Mason
Who supplies Mason’s drinking water, and has it had violations?
Greenville Water Dept (EPA ID NH0991010). 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 110.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Mason?
Eversource (Public Service Co. of New Hampshire), an investor-owned utility. Its homes paid about 24.2¢ per kWh in 2025 (EIA).
What internet providers serve Mason?
Fidium Fiber, TDS Telecom, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Mason?
03048 (95%), 03086 (5%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Mason in?
Mason School District.
How do I register to vote in Mason?
New Hampshire has no online registration; you can register in person up to and including Election Day or by mail only in special circumstances (received 13 days before). Elections here are run by the Town Clerk of Mason. Check your registration at app.sos.nh.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 Nov 19, 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.