Photo: Victor-ny · CC BY-SA 3.0Living in Groton, CT: what to set up and who to call
Groton runs its own electric utility, Groton Dept of Utilities; its homes paid 18.1¢ per kWh in 2025. The closest public drop-off to Groton is Groton Transfer Station, 4 miles out; the town decides whether residents may use it.
I’m new in town
What to set up in Groton, 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 Groton.
Power comes from Groton Dept of Utilities
Groton Dept of Utilities (Groton Dept of Utilities - (CT)), a municipal utility, serves all of Groton. Its homes paid an average of 18.1¢ per kWh in 2025, about $134 a month (its average across Connecticut).
Start or move service: grotonutilities.com · (860) 446-4000
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Groton Utilities
Groton Utilities supplies almost all of Groton. It draws surface water and serves 30,200 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 1.1 ppb, below the 15 ppb action level that applied. The highest in five years was 6.6 ppb. That’s lower than 51% 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. CT0590011.
6 home internet providers serve Groton
100% of 2,401 addresses can get 100/20 Mbps; 54% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| Breezeline | Cable | 98% | 1,000/50 |
| Frontier | Fiber, DSL | 72% | 7,000/7,000 |
| Verizon | Fixed wireless | 56% | 300/20 |
| AT&T | Fixed wireless | 53% | 25/3 |
| T-Mobile | Fixed wireless | 30% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in Groton
Pickup days, the drop-off and recycling in Groton, from the town’s own site.
Town of Groton Residential Transfer Station
We couldn’t find its opening hours.
Cost: Annual permit $110/$100/$85 (per the brochure's yearly permit pricing); day pass $20 per day for cars and pickups; $50 per trip for larger vehicles
From cms9files.revize.com, groton-ct.gov, the town’s official site, checked Oct 21, 2026; pages dated September 1, 2026. 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.
Groton is in Groton School District.
C+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 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 30, 2026.
Groton is in ZIP code 06340
ZIP codes where Groton residents live, with the share of the town in each.
| ZIP | Post office name | Share of Groton | ZIP’s residents in Groton |
|---|---|---|---|
| 06340 | Groton, CT | 100% | 32% |
06349 is P.O. box or single-organization ZIP with no homes.
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 Groton
Who supplies Groton’s drinking water, and has it had violations?
Groton Utilities (EPA ID CT0590011). 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 1.1 ppb (Jan–Dec 2026), against a 15 ppb action level.
Who provides electricity in Groton?
Groton Dept of Utilities (Groton Dept of Utilities - (CT)), a municipal utility. Its homes paid about 18.1¢ per kWh in 2025 (EIA).
What internet providers serve Groton?
Xfinity, Breezeline, Frontier, Verizon, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Groton?
06340. Census 2020 ZIP Code Tabulation Areas.
What school district is Groton in?
Groton School District.
How do I register to vote in Groton?
In Connecticut you can register online until 18 days before Election Day, in person up to and including Election Day, or by mail (postmarked 18 days before). Elections here are run by the Groton Town Clerk. Check your registration at portaldir.ct.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: Groton’s own website (cms9files.revize.com, groton-ct.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 Sep 30, 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.