Photo: Liveon001 ©Travis Witt · CC BY-SA 3.0Living in Martindale, TX: what to set up and who to call
Power in Martindale comes from City of San Marcos, a municipal utility rather than a private company. For emergencies, Martindale is closest to Christus Santa Rosa Hospital-San Marcos, 6.6 miles away.
I’m new in town
What to set up in Martindale, 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 Martindale.
Power comes from City of San Marcos
City of San Marcos (City of San Marcos - (TX)), a municipal utility, serves 59.4% of Martindale residents. Its homes paid an average of 12.7¢ per kWh in 2025, about $116 a month (its average across Texas).
Start or move service: ci.san-marcos.tx.us · (512) 393-8309
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Martindale WSC
Martindale WSC supplies almost all of Martindale. It buys treated surface water (EPA lists Crwa Hays Caldwell WTP as seller) and serves 3,045 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 2024–Dec 2026, was 2.8 ppb, below the 15 ppb action level that applied. That’s higher than 80% 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. TX0280013.
5 home internet providers serve Martindale
99% of 478 addresses can get 100/20 Mbps; 74% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| VTX1 | Fixed wireless, Fiber | 97% | 400/50 |
| Spectrum | Cable, Fiber | 89% | 1,000/1,000 |
| Frontier | Fiber | 73% | 7,000/7,000 |
| Verizon | Fixed wireless | 70% | 300/20 |
| AT&T | Fixed wireless | 31% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Martindale’s trash rules yet
Pickup rules, the dump and recycling in Martindale.
Where your child goes to school
Public school districts and the school path by grade.
Martindale is in San Marcos Consolidated Independent School District.
DSchool 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 Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Martindale is in ZIP code 78655
ZIP codes where Martindale residents live, with the share of the town in each.
| ZIP | Post office name | Share of Martindale | ZIP’s residents in Martindale |
|---|---|---|---|
| 78655 | Martindale, TX | 100% | 43% |
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 Martindale
Who supplies Martindale’s drinking water, and has it had violations?
Martindale WSC (EPA ID TX0280013). 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 2.8 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Martindale?
City of San Marcos (City of San Marcos - (TX)), a municipal utility. Its homes paid about 12.7¢ per kWh in 2025 (EIA).
What internet providers serve Martindale?
VTX1, Spectrum, Frontier, Verizon, AT&T (FCC, as of December 2025).
What ZIP codes are in Martindale?
78655. Census 2020 ZIP Code Tabulation Areas.
What school district is Martindale in?
San Marcos Consolidated Independent School District.
How do I register to vote in Martindale?
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 Caldwell 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.