Living in Mongaup Valley, NY: what to set up and who to call
Mongaup Valley has no town government of its own, so Sullivan County runs its elections and most services, and its children attend Monticello Central School District. Mineral Springs Park MHP reported one health-based violation to EPA in the last five years: arsenic, beginning Jan 2025.
I’m new in town
What to set up in Mongaup Valley, 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 Mongaup Valley.
Power comes from New York State Elec & Gas
New York State Elec & Gas (New York State Elec & Gas Corp), an investor-owned utility, serves all of Mongaup Valley. Its homes paid an average of 22.6¢ per kWh in 2025, about $168 a month (its average across New York, for customers on its standard service). New York lets you buy power from another supplier; 6% of New York State Elec & Gas’ home customers do, and New York State Elec & Gas still delivers it.
Start or move service: nyseg.com · (800) 572-1131
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Mineral Springs Park MHP
Mineral Springs Park MHP supplies Mongaup Valley: 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 draws ground water and serves 66 people in all.
1 health-based violation reported to EPA in the five years to October 2026: arsenic, beginning Jan 2025. 78% of the 11,392 systems serving <=100 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2015–Dec 2023, was 1.1 ppb, below the 15 ppb action level that applied. 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 (EPA’s estimate). Violations are counted by the start of their compliance period. NY5201442.
2 home internet providers serve Mongaup Valley
83% of 166 addresses can get 100/20 Mbps; 2% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 80% | 1,000/1,000 |
| Verizon | Fixed wireless | 15% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Mongaup Valley’s trash rules yet
Pickup rules, the dump and recycling in Mongaup Valley.
Where your child goes to school
Public school districts and the school path by grade.
Most of Mongaup Valley (90%) is in Monticello Central School District; parts are in Liberty Central School District (10%).
Test scores and every school: see Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Mongaup Valley is unincorporated, so Sullivan County is the local government.
Election office: FVAP local election office directory, updated Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
Mongaup Valley spans 2 ZIP codes
ZIP codes where Mongaup Valley residents live, with the share of the town in each.
| ZIP | Post office name | Share of Mongaup Valley | ZIP’s residents in Mongaup Valley |
|---|---|---|---|
| 12762 | Mongaup Valley, NY | 75% | 41% |
| 12701 | Monticello, NY | 25% | 0% |
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 Mongaup Valley
Who supplies Mongaup Valley’s drinking water, and has it had violations?
Mineral Springs Park MHP (EPA ID NY5201442). It reported 1 health-based violation to EPA in the five years to October 2026: arsenic. 78% of systems its size had none. Its latest lead 90th percentile was 1.1 ppb (Jan 2015–Dec 2023), against a 15 ppb action level.
Who provides electricity in Mongaup Valley?
New York State Elec & Gas (New York State Elec & Gas Corp), an investor-owned utility. Its homes paid about 22.6¢ per kWh in 2025 (EIA).
What internet providers serve Mongaup Valley?
Spectrum, Verizon (FCC, as of December 2025).
What ZIP codes are in Mongaup Valley?
12762 (75%), 12701 (25%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Mongaup Valley in?
Monticello Central School District. Parts of the city are in Liberty Central School District.
How do I register to vote in Mongaup Valley?
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 Sullivan 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 National Broadband Map, as of December 2025.