Living in Cumberland, OK: what to set up and who to call
Marshall County Rural Water District #2 reported 41 health-based violations to EPA in the last five years: disinfection byproducts (TTHM) ×41. 83% of systems its size reported none. Cumberland has no town government of its own, so Marshall County runs its elections and most services, and its children attend Madill Public Schools.
I’m new in town
What to set up in Cumberland, 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 Cumberland.
Power comes from OG&E
OG&E (Oklahoma Gas & Electric Co.), an investor-owned utility, serves all of Cumberland. 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 Marshall County Rural Water District #2
Marshall County Rural Water District #2 supplies almost all of Cumberland. It draws surface water (EPA lists Madill as seller) and serves 17,587 people in all.
41 health-based violations reported to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×41, the latest beginning Apr 2026. 83% of the 3,525 systems serving 10,001–50,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, was 1.1 ppb, below the 15 ppb action level that applied. That’s lower than 51% 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. OK1010848.
Which providers serve Cumberland
This card will list the home internet providers the FCC’s National Broadband Map shows in Cumberland, 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 Cumberland’s trash rules yet
Pickup rules, the dump and recycling in Cumberland.
Where your child goes to school
Public school districts and the school path by grade.
Cumberland is in Madill 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.
No town hall: the county runs things
Cumberland is unincorporated, so Marshall County is the local government.
Election office: FVAP local election office directory, updated Nov 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Cumberland is in ZIP code 73446
ZIP codes where Cumberland residents live, with the share of the town in each.
| ZIP | Post office name | Share of Cumberland | ZIP’s residents in Cumberland |
|---|---|---|---|
| 73446 | Madill, OK | 100% | 4% |
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 Cumberland
Who supplies Cumberland’s drinking water, and has it had violations?
Marshall County Rural Water District #2 (EPA ID OK1010848). It reported 41 health-based violations to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×41. 83% of systems its size had none. Its latest lead 90th percentile was 1.1 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Cumberland?
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 Cumberland?
73446. Census 2020 ZIP Code Tabulation Areas.
What school district is Cumberland in?
Madill Public Schools.
How do I register to vote in Cumberland?
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, Marshall 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.