Photo: 32jk4rjkf84 · CC BY-SA 4.0Living in Hillsdale, OK: what to set up and who to call
The Hillsdale Pwa water system reported one health-based violation to EPA in the last five years: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. For emergencies, Hillsdale is closest to Integris Health Enid Hospital, 13.3 miles away.
I’m new in town
What to set up in Hillsdale, 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 Hillsdale.
Power comes from OG&E
OG&E (Oklahoma Gas & Electric Co.), an investor-owned utility, serves all of Hillsdale. Its homes paid an average of 12.5¢ per kWh in 2025, about $131 a month (its average across Oklahoma).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Hillsdale Pwa water system
The Hillsdale Pwa water system supplies almost all of Hillsdale. It buys treated ground water (EPA lists Kremlin-Hillsdale Rural Water District 1 as seller) and serves 110 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. 77% of the 15,074 systems serving 101–500 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Jun 2026, was 11.2 ppb, below the 15 ppb action level that applied. That’s higher than 98% 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. OK3002404.
Which providers serve Hillsdale
This card will list the home internet providers the FCC’s National Broadband Map shows in Hillsdale, 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 Hillsdale’s trash rules yet
Pickup rules, the dump and recycling in Hillsdale.
Where your child goes to school
Public school districts and the school path by grade.
Hillsdale is in Kremlin-Hillsdale 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 Feb 2018; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Hillsdale is in ZIP code 73743
ZIP codes where Hillsdale residents live, with the share of the town in each.
| ZIP | Post office name | Share of Hillsdale | ZIP’s residents in Hillsdale |
|---|---|---|---|
| 73743 | Hillsdale, OK | 100% | 100% |
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 Hillsdale
Who supplies Hillsdale’s drinking water, and has it had violations?
The Hillsdale Pwa water system (EPA ID OK3002404). It reported 1 health-based violation to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions). 77% of systems its size had none. Its latest lead 90th percentile was 11.2 ppb (Jan–Jun 2026), against a 15 ppb action level.
Who provides electricity in Hillsdale?
OG&E (Oklahoma Gas & Electric Co.), an investor-owned utility. Its homes paid about 12.5¢ per kWh in 2025 (EIA).
What ZIP codes are in Hillsdale?
73743. Census 2020 ZIP Code Tabulation Areas.
What school district is Hillsdale in?
Kremlin-Hillsdale Schools.
How do I register to vote in Hillsdale?
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, Garfield 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.