Living in Murillo, TX: what to set up and who to call
North Alamo WSC reported 2 health-based violations to EPA in the last five years: disinfection byproducts (TTHM) ×2. 86% of systems its size reported none. Murillo has no town government of its own, so Hidalgo County runs its elections and most services, and its children attend Edinburg Consolidated Independent School District.
I’m new in town
What to set up in Murillo, 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 Murillo.
Power comes from Oncor
Oncor (Oncor Electric Delivery Co.), an investor-owned utility, serves all of Murillo.
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 North Alamo WSC
North Alamo WSC supplies almost all of Murillo. It draws surface water (EPA lists North Cameron Regional Water Treatment F and City of Edinburg and City of Mercedes and City of Weslaco and City of Raymondville as sellers) and serves 171,195 people in all.
2 health-based violations reported to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×2, the latest beginning Oct 2025. 86% of the 332 systems serving 100,001–250,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 0.3 ppb, below the 15 ppb action level that applied. That’s lower than 65% 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. TX1080029.
9 home internet providers serve Murillo
100% of 2,555 addresses can get 100/20 Mbps; 71% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 98% | 1,000/50 |
| Vexus Fiber | Fiber | 56% | 1,000/1,000 |
| AT&T | Fixed wireless, Fiber, DSL | 48% | 1,000/1,000 |
| Metronet | Fiber | 14% | 5,120/5,120 |
| Smartcom Telephone | Fiber | 2% | 10,000/10,000 |
| TWIN | Fixed wireless | 100% | 400/100 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Murillo’s trash rules yet
Pickup rules, the dump and recycling in Murillo.
Where your child goes to school
Public school districts and the school path by grade.
Murillo is in Edinburg Consolidated Independent School District.
B−School gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Murillo is unincorporated, so Hidalgo County is the local government.
Election office: FVAP local election office directory, updated Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Murillo is in ZIP code 78542
ZIP codes where Murillo residents live, with the share of the town in each.
| ZIP | Post office name | Share of Murillo | ZIP’s residents in Murillo |
|---|---|---|---|
| 78542 | Edinburg, TX | 100% | 11% |
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 Murillo
Who supplies Murillo’s drinking water, and has it had violations?
North Alamo WSC (EPA ID TX1080029). It reported 2 health-based violations to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×2. 86% of systems its size had none. Its latest lead 90th percentile was 0.3 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Murillo?
Oncor (Oncor Electric Delivery Co.), an investor-owned utility.
What internet providers serve Murillo?
Spectrum, Vexus Fiber, AT&T, Metronet, Smartcom Telephone, TWIN (FCC, as of December 2025).
What ZIP codes are in Murillo?
78542. Census 2020 ZIP Code Tabulation Areas.
What school district is Murillo in?
Edinburg Consolidated Independent School District.
How do I register to vote in Murillo?
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 Hidalgo 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.