Photo: G. Edward Johnson · CC BY 4.0Living in Chelsea, OK: what to set up and who to call
Mayes Co RWD # 5 reported one health-based violation to EPA in the last five years: disinfection byproducts (HAA5), beginning Jul 2025. For an emergency, Ascension St. John Nowata is the closest ER, 15.7 miles away.
I’m new in town
What to set up in Chelsea, 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 Chelsea.
Power comes from PSO
PSO (Public Service Co. of Oklahoma), an investor-owned utility, serves all of Chelsea. Its homes paid an average of 14.2¢ per kWh in 2025, about $145 a month (its average across Oklahoma).
Start or move service: psoklahoma.com · (888) 216-3523
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Mayes Co RWD # 5
Mayes Co RWD # 5 supplies almost all of Chelsea. It buys treated surface water (EPA lists Chelsea Economic Dev. Auth. and Okla Ordnance Works Authority as sellers) and serves 3,360 people in all.
1 health-based violation reported to EPA in the five years to October 2026: disinfection byproducts (HAA5), beginning Jul 2025. 80% of the 5,012 systems serving 3,301–10,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 1.1 ppb, below the 15 ppb action level that applied. 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. OK3004616.
4 home internet providers serve Chelsea
100% of 946 addresses can get 100/20 Mbps; 91% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| BOLT Fiber | Fiber | 93% | 1,000/1,000 |
| AT&T | DSL, Fixed wireless | 17% | 10/1 |
| The Junction Internet | Fixed wireless | 100% | 100/20 |
| Verizon | Fixed wireless | 66% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Chelsea’s trash rules yet
Pickup rules, the dump and recycling in Chelsea.
Where your child goes to school
Public school districts and the school path by grade.
Chelsea is in Chelsea Public Schools.
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 Sep 12, 2025.
Chelsea is in ZIP code 74016
ZIP codes where Chelsea residents live, with the share of the town in each.
| ZIP | Post office name | Share of Chelsea | ZIP’s residents in Chelsea |
|---|---|---|---|
| 74016 | Chelsea, OK | 100% | 34% |
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 Chelsea
Who supplies Chelsea’s drinking water, and has it had violations?
Mayes Co RWD # 5 (EPA ID OK3004616). It reported 1 health-based violation to EPA in the five years to October 2026: disinfection byproducts (HAA5). 80% of systems its size had none. Its latest lead 90th percentile was 1.1 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Chelsea?
PSO (Public Service Co. of Oklahoma), an investor-owned utility. Its homes paid about 14.2¢ per kWh in 2025 (EIA).
What internet providers serve Chelsea?
BOLT Fiber, AT&T, The Junction Internet, Verizon (FCC, as of December 2025).
What ZIP codes are in Chelsea?
74016. Census 2020 ZIP Code Tabulation Areas.
What school district is Chelsea in?
Chelsea Public Schools.
How do I register to vote in Chelsea?
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, Rogers 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 National Broadband Map, as of December 2025.