Living in Williamsville, MO: what to set up and who to call
Tap water in Williamsville comes from Williamsville PWS, which has a clean five-year EPA record (about 23% of systems its size had a health-based violation) and a latest lead result below detection. Power in Williamsville comes from Ozark Border Electric Coop, a cooperative utility rather than a private company.
I’m new in town
What to set up in Williamsville, 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 Williamsville.
Power comes from Ozark Border Electric Coop
Ozark Border Electric Coop (Ozark Border Electric Coop), a cooperative utility, serves all of Williamsville. Its homes paid an average of 12.3¢ per kWh in 2025, about $167 a month (its average across Missouri).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Williamsville PWS
Williamsville PWS supplies almost all of Williamsville. It draws ground water and serves 342 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 77% of the 15,074 systems serving 101–500 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 1.5 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 (EPA’s estimate). Violations are counted by the start of their compliance period. MO4010861.
2 home internet providers serve Williamsville
65% of 160 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Windstream Missouri | DSL | 73% | 200/20 |
| T-Mobile | Fixed wireless | 41% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Williamsville’s trash rules yet
Pickup rules, the dump and recycling in Williamsville.
Where your child goes to school
Public school districts and the school path by grade.
Williamsville is in Greenville R-II School District.
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 Sep 2015; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Williamsville is in ZIP code 63967
ZIP codes where Williamsville residents live, with the share of the town in each.
| ZIP | Post office name | Share of Williamsville | ZIP’s residents in Williamsville |
|---|---|---|---|
| 63967 | Williamsville, MO | 100% | 15% |
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 Williamsville
Who supplies Williamsville’s drinking water, and has it had violations?
Williamsville PWS (EPA ID MO4010861). It reported no health-based violations to EPA in the five years to October 2026; 77% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Williamsville?
Ozark Border Electric Coop (Ozark Border Electric Coop), a cooperative utility. Its homes paid about 12.3¢ per kWh in 2025 (EIA).
What internet providers serve Williamsville?
Windstream Missouri, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Williamsville?
63967. Census 2020 ZIP Code Tabulation Areas.
What school district is Williamsville in?
Greenville R-II School District.
How do I register to vote in Williamsville?
In Missouri you can register online until 27 days before Election Day, in person until 27 days before Election Day, or by mail (postmarked 27 days before). Elections here are run by the Wayne. Check your registration at voteroutreach.sos.mo.gov.
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 Nov 18, 2024 (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.