Living in LaCoste, TX: what to set up and who to call
Power in LaCoste comes from Bandera Electric Coop, a cooperative utility rather than a private company. Castroville Public Library, 5.1 miles away, is the closest library to LaCoste.
I’m new in town
What to set up in LaCoste, 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 LaCoste.
Power comes from Bandera Electric Coop
Bandera Electric Coop (Bandera Electric Coop, Inc), a cooperative utility, serves all of LaCoste. Its homes paid an average of 12.8¢ per kWh in 2025, about $152 a month (its average across Texas).
Start or move service: banderaelectric.com · (866) 226-3372
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of La Coste water system
The City of La Coste water system supplies almost all of LaCoste. It draws ground water and serves 1,488 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 7,966 systems serving 1,001–3,300 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 4.6 ppb, below the 15 ppb action level that applied. That’s higher than 91% 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. TX1630004.
5 home internet providers serve LaCoste
100% of 507 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Rise Broadband | Fiber | 100% | 1,000/200 |
| Spectrum | Cable, Fiber | 94% | 1,000/1,000 |
| AT&T | DSL, Fixed wireless | 17% | 25/3 |
| VTX1 | Fixed wireless | 100% | 400/50 |
| T-Mobile | Fixed wireless | 71% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have LaCoste’s trash rules yet
Pickup rules, the dump and recycling in LaCoste.
Where your child goes to school
Public school districts and the school path by grade.
LaCoste is in Medina Valley Independent School District.
A−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 Apr 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
LaCoste is in ZIP code 78039
ZIP codes where LaCoste residents live, with the share of the town in each.
| ZIP | Post office name | Share of LaCoste | ZIP’s residents in LaCoste |
|---|---|---|---|
| 78039 | La Coste, TX | 100% | 60% |
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 LaCoste
Who supplies LaCoste’s drinking water, and has it had violations?
The City of La Coste water system (EPA ID TX1630004). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 4.6 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in LaCoste?
Bandera Electric Coop (Bandera Electric Coop, Inc), a cooperative utility. Its homes paid about 12.8¢ per kWh in 2025 (EIA).
What internet providers serve LaCoste?
Rise Broadband, Spectrum, AT&T, VTX1, T-Mobile (FCC, as of December 2025).
What ZIP codes are in LaCoste?
78039. Census 2020 ZIP Code Tabulation Areas.
What school district is LaCoste in?
Medina Valley Independent School District.
How do I register to vote in LaCoste?
Texas has no online registration; you can register in person until 30 days before Election Day or by mail (postmarked 30 days before). Elections here are run by the Medina County Early Voting Clerk. Check your registration at teamrv-mvp.sos.texas.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.