Living in Eldorado, OK: what to set up and who to call
Eldorado runs its own electric utility, City of Eldorado. The nearest library is Thompson Sawyer Public Library, 13.2 miles away.
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 City of Eldorado
City of Eldorado (City of Eldorado - (OK)), 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 Harmon Water Corp
Harmon Water Corp supplies almost all of Eldorado. It draws ground water and serves 1,132 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 7,966 systems serving 1,001–3,300 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Jun 2026, was 4.0 ppb, below the 15 ppb action level that applied. That’s higher than 88% 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. OK2002902.
Which providers serve Eldorado
This card will list the home internet providers the FCC’s National Broadband Map shows in Eldorado, 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 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 Olustee-Eldorado Public Schools.
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 Jun 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Eldorado is in ZIP code 73537
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 |
|---|---|---|---|
| 73537 | Eldorado, OK | 100% | 69% |
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?
Harmon Water Corp (EPA ID OK2002902). 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 4.0 ppb (Jan–Jun 2026), against a 15 ppb action level.
Who provides electricity in Eldorado?
City of Eldorado (City of Eldorado - (OK)), a municipal utility.
What ZIP codes are in Eldorado?
73537. Census 2020 ZIP Code Tabulation Areas.
What school district is Eldorado in?
Olustee-Eldorado Public Schools.
How do I register to vote in Eldorado?
In Oklahoma you can register online until 25 days before Election Day, in person until 25 days before Election Day, or by mail (received 25 days before). Elections here are run by the Secretary, Jackson County Election Board. Check your registration at okvoterportal.okelections.us.
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 Sep 12, 2025 (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.