Photo: John Phelan · CC BY-SA 3.0Living in Griswold, CT: what to set up and who to call
Tap water in most of Griswold comes from Jewett City Water Company, which has a clean five-year EPA record (about 20% of systems its size had a health-based violation) and a latest lead result below detection. Power in Griswold comes from City of Jewett City, a municipal utility rather than a private company.
I’m new in town
What to set up in Griswold, 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 Griswold.
Power comes from City of Jewett City
City of Jewett City (City of Jewett City - (CT)), a municipal utility, serves 53.4% of Griswold residents.
Start or move service: jewettcitydpu.com · (860) 376-2955
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Jewett City Water Company
Jewett City Water Company supplies Griswold: about 56% of residents live in its service area. Ctwc - Bay Mountain serves another 7%. About 26% 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 6,840 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 80% of the 5,012 systems serving 3,301–10,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 0.0 ppb, below the 15 ppb action level that applied. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
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. CT0580011.
6 home internet providers serve Griswold
100% of 4,231 addresses can get 100/20 Mbps; 78% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Breezeline | Cable | 98% | 1,000/50 |
| Xfinity | Cable | 84% | 2,000/250 |
| Frontier | Fiber, DSL | 79% | 7,000/7,000 |
| Verizon | Fixed wireless | 26% | 300/20 |
| AT&T | Fixed wireless | 25% | 25/3 |
| T-Mobile | Fixed wireless | 25% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in Griswold
Pickup days, the drop-off and recycling in Griswold, from the town’s own site.
Griswold Transfer Station (bulky waste facility)
- Wed10 am–2 pm
- Sat7 am–noon
Cost: $40 per calendar year (punch card good for 4 cubic yards; additional fees after punches are used; cash or check only)
From griswold-ct.org, cms8.revize.com, the town’s official site, checked Oct 21, 2026; pages dated October 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.
Griswold is in Griswold 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 Jun 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 30, 2026.
Griswold is in ZIP code 06351
ZIP codes where Griswold residents live, with the share of the town in each.
| ZIP | Post office name | Share of Griswold | ZIP’s residents in Griswold |
|---|---|---|---|
| 06351 | Jewett City, CT | 100% | 73% |
A few homes fall in 06331.
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 Griswold
Who supplies Griswold’s drinking water, and has it had violations?
Jewett City Water Company (EPA ID CT0580011). It reported no health-based violations to EPA in the five years to October 2026; 80% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Griswold?
City of Jewett City (City of Jewett City - (CT)), a municipal utility.
What internet providers serve Griswold?
Breezeline, Xfinity, Frontier, Verizon, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Griswold?
06351. Census 2020 ZIP Code Tabulation Areas.
What school district is Griswold in?
Griswold School District.
How do I register to vote in Griswold?
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 Griswold 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: Griswold’s own website (griswold-ct.org, cms8.revize.com), 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.