Photo: Nicolas Henderson from Coppell, Texas · CC BY 2.0Living in O'Brien, TX: what to set up and who to call
The City of Obrien water system reported one health-based violation to EPA in the last five years: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. Power in O'Brien comes from Tri-County Electric Coop, Inc (TX), a cooperative utility rather than a private company.
I’m new in town
What to set up in O'Brien, 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 O'Brien.
Power comes from Tri-County Electric Coop, Inc (TX)
Tri-County Electric Coop, Inc (TX) (Tri-County Electric Coop, Inc (TX)), a cooperative utility, serves all of O'Brien. Its homes paid an average of 15.1¢ per kWh in 2025, about $228 a month (its average across Texas).
Start or move service: tcectexas.com · (817) 444-3201
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Obrien water system
The City of Obrien water system supplies almost all of O'Brien. It buys treated surface water (EPA lists North Central Texas Municipal Water Auth as seller) and serves 87 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. 78% of the 11,392 systems serving <=100 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Jun 2026, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 11.2 ppb. 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. TX1040005.
6 home internet providers serve O'Brien
100% of 84 addresses can get 100/20 Mbps; 48% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Syntrio | Fixed wireless, DSL, Fiber | 100% | 1,000/1,000 |
| Valor Telecommunications of Texas | DSL | 93% | 200/20 |
| AMA TechTel Communications | Fixed wireless | 100% | 75/20 |
| T-Mobile | Fixed wireless | 25% | 25/3 |
| Verizon | Fixed wireless | 14% | 300/20 |
| AT&T | Fixed wireless | 6% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have O'Brien’s trash rules yet
Pickup rules, the dump and recycling in O'Brien.
Where your child goes to school
Public school districts and the school path by grade.
O'Brien is in Knox City-O'Brien Consolidated 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.
O'Brien is in ZIP code 79539
ZIP codes where O'Brien residents live, with the share of the town in each.
| ZIP | Post office name | Share of O'Brien | ZIP’s residents in O'Brien |
|---|---|---|---|
| 79539 | O Brien, TX | 100% | 60% |
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 O'Brien
Who supplies O'Brien’s drinking water, and has it had violations?
The City of Obrien water system (EPA ID TX1040005). 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). 78% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan–Jun 2026), against a 15 ppb action level.
Who provides electricity in O'Brien?
Tri-County Electric Coop, Inc (TX) (Tri-County Electric Coop, Inc (TX)), a cooperative utility. Its homes paid about 15.1¢ per kWh in 2025 (EIA).
What internet providers serve O'Brien?
Syntrio, Valor Telecommunications of Texas, AMA TechTel Communications, T-Mobile, Verizon, AT&T (FCC, as of December 2025).
What ZIP codes are in O'Brien?
79539. Census 2020 ZIP Code Tabulation Areas.
What school district is O'Brien in?
Knox City-O'Brien Consolidated Independent School District.
How do I register to vote in O'Brien?
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 Haskell 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.