Hydeville School · Photo: Doug Kerr · CC BY-SA 2.0Living in Castleton, VT: what to set up and who to call
Castleton has its own drop-off, Castleton Transfer Station, on 393 Staso Road. Castleton runs its own elections, so the Castleton Town Clerk, not a county office, keeps the voter rolls.
I’m new in town
What to set up in Castleton, 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 Castleton.
Power comes from Green Mountain Power
Green Mountain Power (Green Mountain Power Corp), an investor-owned utility, serves all of Castleton. Its homes paid an average of 23.3¢ per kWh in 2025, about $140 a month (its average across Vermont).
Start or move service: greenmountainpower.com · (888) 836-4672
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Castleton Fire District 1
Castleton Fire District 1 supplies Castleton: about 33% of residents live in its service area. Castleton Fire District 3 serves another 20%. Windy Hollow serves another 6%. About 38% 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 1,940 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 1.5 ppb, below the 15 ppb action level that applied. The highest in five years was 10.0 ppb. That’s higher than 61% 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. VT0005212.
8 home internet providers serve Castleton
99% of 2,117 addresses can get 100/20 Mbps; 85% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 90% | 1,200/35 |
| Fidium Fiber | Fiber | 62% | 2,000/2,000 |
| GoNetspeed | Fiber | 20% | 1,000/1,000 |
| Consolidated Communications | DSL | 4% | 10/1 |
| VTel Wireless | Fixed wireless | 64% | 25/3 |
| T-Mobile | Fixed wireless | 33% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Castleton has its own drop-off: Castleton Transfer Station
Where to take trash and recycling in Castleton, and where the rules are.
Castleton Transfer Station
393 Staso Road, Castleton, VT, 05735
A fee applies (OSM). Before you go, check the rules on castletonvermont.org.
OpenStreetMap, as of Oct 9, 2026 (last edited Aug 2025). © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Castleton is in two districts that split the grades: Slate Valley Unified Union School District 62 and Slate Valley Unified Union School District (Supervisory).
BSchool 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 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
Castleton spans 3 ZIP codes
ZIP codes where Castleton residents live, with the share of the town in each.
| ZIP | Post office name | Share of Castleton | ZIP’s residents in Castleton |
|---|---|---|---|
| 05735 | Castleton, VT | 82% | 91% |
| 05732 | Bomoseen, VT | 16% | 78% |
| 05743 | Fair Haven, VT | 2% | 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.
Train: OpenStreetMap (© OpenStreetMap contributors). ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Castleton
Who supplies Castleton’s drinking water, and has it had violations?
Castleton Fire District 1 (EPA ID VT0005212). 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 1.5 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Castleton?
Green Mountain Power (Green Mountain Power Corp), an investor-owned utility. Its homes paid about 23.3¢ per kWh in 2025 (EIA).
What internet providers serve Castleton?
Xfinity, Fidium Fiber, GoNetspeed, Consolidated Communications, VTel Wireless, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Castleton?
05735 (82%), 05732 (16%), 05743 (2%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Castleton in?
Slate Valley Unified Union School District 62 and Slate Valley Unified Union School District (Supervisory).
How do I register to vote in Castleton?
In Vermont you can register online up to and including Election Day, in person up to and including Election Day, or by mail (received by Election Day). Elections here are run by the Castleton Town Clerk. Check your registration at mvp.vermont.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.