Living in Theresa, NY: what to set up and who to call
Theresa spans 3 ZIP codes; 13691 holds the most residents (88%). For a library card, the closest branch is Theresa Free Library, 3.4 miles out.
I’m new in town
What to set up in Theresa, 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 Theresa.
Power comes from National Grid
National Grid (Niagara Mohawk Power Corp.), an investor-owned utility, serves all of Theresa. Its homes paid an average of 19.9¢ per kWh in 2025, about $130 a month (its average across New York, for customers on its standard service). New York lets you buy power from another supplier; 6% of National Grid’s home customers do, and National Grid still delivers it.
Start or move service: www1.nationalgridus.com · (315) 474-1511
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Theresa Village water system
The Theresa Village water system supplies Theresa: about 30% of residents live in its service area. Indian River Estates, Ltd. serves another 5%. About 65% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated ground water (EPA lists Philadelphia Village as seller) and serves 950 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 5,327 systems serving 501–1,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2003–Dec 2005, was 4.3 ppb, below the 15 ppb action level that applied. It’s from 2005: EPA has no newer result for this system.
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 (EPA’s estimate). Violations are counted by the start of their compliance period. NY2202344.
5 home internet providers serve Theresa
90% of 1,625 addresses can get 100/20 Mbps; 20% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable | 69% | 1,000/50 |
| Verizon | Fiber, Fixed wireless | 16% | 980/880 |
| Castle Cable TV | Fiber | 9% | 1,000/500 |
| Citizens Telephone Company of Hammond, NY | Fiber | 4% | 1,000/500 |
| T-Mobile | Fixed wireless | 8% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in Theresa
Pickup days, the drop-off and recycling in Theresa, from the town’s own site.
Theresa Transfer Site
- Tue8 am–3 pm
- Thu8 am–3 pm
- Sat8 am–3 pm
From townoftheresany.gov, the town’s official site, checked Oct 21, 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.
Most of Theresa (88%) is in Indian River Central School District; parts are in La Fargeville Central School District (11%).
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 Aug 3, 2026.
Theresa spans 3 ZIP codes
ZIP codes where Theresa residents live, with the share of the town in each.
| ZIP | Post office name | Share of Theresa | ZIP’s residents in Theresa |
|---|---|---|---|
| 13691 | Theresa, NY | 88% | 78% |
| 13679 | Redwood, NY | 10% | 15% |
| 13673 | Philadelphia, NY | 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.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Theresa
Who supplies Theresa’s drinking water, and has it had violations?
The Theresa Village water system (EPA ID NY2202344). 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 4.3 ppb (Jan 2003–Dec 2005), against a 15 ppb action level.
Who provides electricity in Theresa?
National Grid (Niagara Mohawk Power Corp.), an investor-owned utility. Its homes paid about 19.9¢ per kWh in 2025 (EIA).
What internet providers serve Theresa?
Spectrum, Verizon, Castle Cable TV, Citizens Telephone Company of Hammond, NY, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Theresa?
13691 (88%), 13679 (10%), 13673 (2%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Theresa in?
Indian River Central School District. Parts of the city are in La Fargeville Central School District.
How do I register to vote in Theresa?
In New York you can register online until 10 days before Election Day, in person until 10 days before Election Day, or by mail (postmarked 15 days before and received 10 days before). Elections here are run by the Jefferson County Board of Elections. Check your registration at voterlookup.elections.ny.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: Theresa’s own website (townoftheresany.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 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.