Photo: Renelibrary · CC BY-SA 4.0Living in Thornton, TX: what to set up and who to call
Every home in Thornton is in ZIP code 76687. Public schools here are run by Groesbeck Independent School District.
I’m new in town
What to set up in Thornton, 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 Thornton.
Power comes from Entergy Texas
Entergy Texas (Entergy Texas Inc.), an investor-owned utility, serves all of Thornton. Its homes paid an average of 13.9¢ per kWh in 2025, about $172 a month (its average across Texas).
Start or move service: entergy-texas.com · (800) 368-3749
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Thornton Water System
City of Thornton Water System supplies almost all of Thornton. It draws ground water and serves 530 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 5,327 systems serving 501–1,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 3.1 ppb, below the 15 ppb action level that applied. That’s higher than 84% 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. TX1470005.
Which providers serve Thornton
This card will list the home internet providers the FCC’s National Broadband Map shows in Thornton, 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 Thornton’s trash rules yet
Pickup rules, the dump and recycling in Thornton.
Where your child goes to school
Public school districts and the school path by grade.
Thornton is in Groesbeck 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 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Thornton is in ZIP code 76687
ZIP codes where Thornton residents live, with the share of the town in each.
| ZIP | Post office name | Share of Thornton | ZIP’s residents in Thornton |
|---|---|---|---|
| 76687 | Thornton, TX | 100% | 28% |
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 Thornton
Who supplies Thornton’s drinking water, and has it had violations?
City of Thornton Water System (EPA ID TX1470005). 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 3.1 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Thornton?
Entergy Texas (Entergy Texas Inc.), an investor-owned utility. Its homes paid about 13.9¢ per kWh in 2025 (EIA).
What ZIP codes are in Thornton?
76687. Census 2020 ZIP Code Tabulation Areas.
What school district is Thornton in?
Groesbeck Independent School District.
How do I register to vote in Thornton?
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 Limestone 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.