Photo: Walter Curran Mendenhall · Public domainLiving in Grandfalls, TX: what to set up and who to call
Oncor delivers the power in Grandfalls, but in Texas’s open market you choose the company that sells it. Tap water in Grandfalls comes from the City of Grandfalls water system, 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.
I’m new in town
What to set up in Grandfalls, 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 Grandfalls.
Power comes from Oncor
Oncor (Oncor Electric Delivery Co.), an investor-owned utility, serves all of Grandfalls.
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 Grandfalls water system
The City of Grandfalls water system supplies almost all of Grandfalls. It draws ground water (EPA lists Colorado River Municipal Water District as seller) and serves 395 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 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. TX2380003.
Which providers serve Grandfalls
This card will list the home internet providers the FCC’s National Broadband Map shows in Grandfalls, the share of addresses that can get 100/20 Mbps and the share with fiber, with the map’s “as of” date.
Source to come: FCC Broadband Data Collection.
We don’t have Grandfalls’ trash rules yet
Pickup rules, the dump and recycling in Grandfalls.
Where your child goes to school
Public school districts and the school path by grade.
Grandfalls is in Grandfalls-Royalty 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 Aug 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Grandfalls is in ZIP code 79742
ZIP codes where Grandfalls residents live, with the share of the town in each.
| ZIP | Post office name | Share of Grandfalls | ZIP’s residents in Grandfalls |
|---|---|---|---|
| 79742 | Grandfalls, TX | 100% | 74% |
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 Grandfalls
Who supplies Grandfalls’ drinking water, and has it had violations?
The City of Grandfalls water system (EPA ID TX2380003). 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 (Jul–Dec 2025), against a 15 ppb action level.
Who provides electricity in Grandfalls?
Oncor (Oncor Electric Delivery Co.), an investor-owned utility.
What ZIP codes are in Grandfalls?
79742. Census 2020 ZIP Code Tabulation Areas.
What school district is Grandfalls in?
Grandfalls-Royalty Independent School District.
How do I register to vote in Grandfalls?
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 Ward 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): pending.