Living in Mertens, TX: what to set up and who to call
An EPA health-based violation from 2024 is still open for the City of Mertens water system. Oncor delivers the power in Mertens, but in Texas’s open market you choose the company that sells it.
I’m new in town
What to set up in Mertens, 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 Mertens.
Power comes from Oncor
Oncor (Oncor Electric Delivery Co.), an investor-owned utility, serves all of Mertens.
Start or move service: oncor.com · (888) 875-6279
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Mertens water system
The City of Mertens water system supplies almost all of Mertens. It draws ground water and serves 180 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. 77% of the 15,074 systems serving 101–500 people had none. 1 older violation is still open, since 2024: a lead and copper treatment requirement (Lead and Copper Rule Revisions), per EPA’s records.
The latest lead result on file, the 90th percentile of homes sampled in Jul–Dec 2025, was 0.0 ppb, below the 15 ppb action level that applied. 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. TX1090024.
7 home internet providers serve Mertens
100% of 75 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Rise Broadband | Fiber, Fixed wireless | 100% | 1,000/200 |
| Valor Telecommunications of Texas | DSL | 95% | 25/3 |
| AMA TechTel Communications | Fixed wireless | 100% | 75/20 |
| Legacy ISP | Fixed wireless | 100% | 100/10 |
| Nextlink | Fixed wireless | 87% | 400/100 |
| AT&T | Fixed wireless | 67% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Mertens’ trash rules yet
Pickup rules, the dump and recycling in Mertens.
Where your child goes to school
Public school districts and the school path by grade.
Mertens is in Frost Independent 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 Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Mertens is in ZIP code 76666
ZIP codes where Mertens residents live, with the share of the town in each.
| ZIP | Post office name | Share of Mertens | ZIP’s residents in Mertens |
|---|---|---|---|
| 76666 | Mertens, TX | 100% | 47% |
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 Mertens
Who supplies Mertens’ drinking water, and has it had violations?
The City of Mertens water system (EPA ID TX1090024). It reported 1 health-based violation to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions). 77% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jul–Dec 2025), against a 15 ppb action level.
Who provides electricity in Mertens?
Oncor (Oncor Electric Delivery Co.), an investor-owned utility.
What internet providers serve Mertens?
Rise Broadband, Valor Telecommunications of Texas, AMA TechTel Communications, Legacy ISP, Nextlink, AT&T (FCC, as of December 2025).
What ZIP codes are in Mertens?
76666. Census 2020 ZIP Code Tabulation Areas.
What school district is Mertens in?
Frost Independent School District.
How do I register to vote in Mertens?
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 Hill 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.