Photo: Nyttend · Public domainLiving in Eldorado, OH: what to set up and who to call
Eldorado runs its own electric utility, Village of Eldorado. Spectrum and Brightspeed wire most of Eldorado, and 94% of addresses can get fiber.
I’m new in town
What to set up in Eldorado, 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 Eldorado.
Power comes from Village of Eldorado
Village of Eldorado (Village of Eldorado - (OH)), a municipal utility, serves all of Eldorado.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Village of Eldorado water system
The Village of Eldorado water system supplies almost all of Eldorado. It draws ground water and serves 539 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–Dec 2025, was 2.0 ppb, below the 15 ppb action level that applied. The highest in five years was 5.8 ppb. That’s higher than 70% 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. OH6800512.
7 home internet providers serve Eldorado
97% of 247 addresses can get 100/20 Mbps; 94% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 96% | 1,000/1,000 |
| Brightspeed | Fiber, DSL | 94% | 2,000/2,000 |
| BridgeMAXX Suncoast Broadband | Fixed wireless | 97% | 50/10 |
| Verizon | Fixed wireless | 83% | 300/20 |
| AT&T | Fixed wireless | 42% | 100/20 |
| Ohio Transparent Telecom | Fixed wireless | 31% | 50/10 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Eldorado’s trash rules yet
Pickup rules, the dump and recycling in Eldorado.
Where your child goes to school
Public school districts and the school path by grade.
Eldorado is in National Trail Local School District.
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.
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.
Eldorado is in ZIP code 45321
ZIP codes where Eldorado residents live, with the share of the town in each.
| ZIP | Post office name | Share of Eldorado | ZIP’s residents in Eldorado |
|---|---|---|---|
| 45321 | Eldorado, OH | 100% | 53% |
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 Eldorado
Who supplies Eldorado’s drinking water, and has it had violations?
The Village of Eldorado water system (EPA ID OH6800512). 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 2.0 ppb (Jan–Dec 2025), against a 15 ppb action level.
Who provides electricity in Eldorado?
Village of Eldorado (Village of Eldorado - (OH)), a municipal utility.
What internet providers serve Eldorado?
Spectrum, Brightspeed, BridgeMAXX Suncoast Broadband, Verizon, AT&T, Ohio Transparent Telecom (FCC, as of December 2025).
What ZIP codes are in Eldorado?
45321. Census 2020 ZIP Code Tabulation Areas.
What school district is Eldorado in?
National Trail Local School District.
How do I register to vote in Eldorado?
In Ohio you can register online until 30 days before Election Day, in person until 30 days before Election Day, or by mail (postmarked 30 days before). Elections here are run by the Director, Preble County Board of Elections. Check your registration at voterlookup.ohiosos.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.