Oklahoma City University · Photo: Matthew Rutledge (rutlo) · CC BY 2.0Living in Foster, OK: what to set up and who to call
Elmore City Rw Corp reported one health-based violation to EPA in the last five years: disinfection byproducts (TTHM), beginning Jan 2026. The nearest emergency room is Valley Community Hospital, 17.5 miles away.
I’m new in town
What to set up in Foster, 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 Foster.
Power comes from OG&E
OG&E (Oklahoma Gas & Electric Co.), an investor-owned utility, serves all of Foster. 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 Elmore City Rw Corp
Elmore City Rw Corp supplies Foster: about 53% of residents live in its service area. About 47% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists Pauls Valley and Elmore City as sellers) and serves 1,107 people in all.
1 health-based violation reported to EPA in the five years to October 2026: disinfection byproducts (TTHM), beginning Jan 2026. 78% of the 7,966 systems serving 1,001–3,300 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 5.1 ppb. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
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. OK3002505.
Which providers serve Foster
This card will list the home internet providers the FCC’s National Broadband Map shows in Foster, 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 Foster’s trash rules yet
Pickup rules, the dump and recycling in Foster.
Where your child goes to school
Public school districts and the school path by grade.
Most of Foster (93%) is in Elmore City-Pernell Schools; parts are in Bray-Doyle Public Schools (7%).
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.
Foster spans 2 ZIP codes
ZIP codes where Foster residents live, with the share of the town in each.
| ZIP | Post office name | Share of Foster | ZIP’s residents in Foster |
|---|---|---|---|
| 73433 | Elmore City, OK | 65% | 6% |
| 73434 | Foster, OK | 35% | 16% |
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 Foster
Who supplies Foster’s drinking water, and has it had violations?
Elmore City Rw Corp (EPA ID OK3002505). It reported 1 health-based violation to EPA in the five years to October 2026: disinfection byproducts (TTHM). 78% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Foster?
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 Foster?
73433 (65%), 73434 (35%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Foster in?
Elmore City-Pernell Schools. Parts of the city are in Bray-Doyle Public Schools.
How do I register to vote in Foster?
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, Garvin 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.