Living in De Kalb, NY: what to set up and who to call
Most mail in De Kalb goes to 13630 (54% of residents), one of 6 ZIP codes in town. Gouverneur Hospital, 10.9 miles away, is the nearest emergency room.
I’m new in town
What to set up in De Kalb, 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 De Kalb.
Power comes from National Grid
National Grid (Niagara Mohawk Power Corp.), an investor-owned utility, serves all of De Kalb. 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 Dekalb Water District
Dekalb Water District supplies De Kalb: 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 buys treated ground water (EPA lists Hermon Water District as seller) and serves 492 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 77% of the 15,074 systems serving 101–500 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 0.9 ppb, below the 15 ppb action level that applied. The highest in five years was 7.0 ppb. That’s higher than 52% 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. NY4430115.
Which providers serve De Kalb
This card will list the home internet providers the FCC’s National Broadband Map shows in De Kalb, the share of addresses that can get 100/20 Mbps and the share with fiber, with the map’s “as of” date.
Source to come: FCC Broadband Data Collection.
We don’t have De Kalb’s trash rules yet
Pickup rules, the dump and recycling in De Kalb.
Where your child goes to school
Public school districts and the school path by grade.
Most of De Kalb (56%) is in Hermon-DeKalb Central School District; parts are in Gouverneur Central School District (25%) and Heuvelton Central School District (14%) and Canton Central School District (4%).
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 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
De Kalb spans 6 ZIP codes
ZIP codes where De Kalb residents live, with the share of the town in each.
| ZIP | Post office name | Share of De Kalb | ZIP’s residents in De Kalb |
|---|---|---|---|
| 13630 | De Kalb Junction, NY | 54% | 86% |
| 13681 | Richville, NY | 25% | 72% |
| 13680 | Rensselaer Falls, NY | 14% | 24% |
| 13642 | Gouverneur, NY | 4% | 1% |
| 13617 | Canton, NY | 2% | 0% |
| 13652 | Hermon, NY | 1% | 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 De Kalb
Who supplies De Kalb’s drinking water, and has it had violations?
Dekalb Water District (EPA ID NY4430115). It reported no health-based violations to EPA in the five years to October 2026; 77% of systems its size had none. Its latest lead 90th percentile was 0.9 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in De Kalb?
National Grid (Niagara Mohawk Power Corp.), an investor-owned utility. Its homes paid about 19.9¢ per kWh in 2025 (EIA).
What ZIP codes are in De Kalb?
13630 (54%), 13681 (25%), 13680 (14%), 13642 (4%), 13617 (2%), 13652 (1%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is De Kalb in?
Hermon-DeKalb Central School District. Parts of the city are in Gouverneur Central School District and Heuvelton Central School District and Canton Central School District.
How do I register to vote in De Kalb?
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 St. Lawrence 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: 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): pending.