Living in Callender Lake, TX: what to set up and who to call
Callender Lake has no town government of its own, so Van Zandt County runs its elections and most services, and its children attend Van Independent School District. Oncor delivers the power in Callender Lake, but in Texas’s open market you choose the company that sells it.
I’m new in town
What to set up in Callender Lake, 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 Callender Lake.
Power comes from Oncor
Oncor (Oncor Electric Delivery Co.), an investor-owned utility, serves all of Callender Lake.
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 Callender Lake water system
The Callender Lake water system supplies almost all of Callender Lake. It draws ground water and serves 2,103 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 7,966 systems serving 1,001–3,300 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–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. TX2340007.
3 home internet providers serve Callender Lake
94% of 838 addresses can get 100/20 Mbps; 94% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Fiber, Cable | 93% | 1,000/1,000 |
| Brightspeed | DSL | 16% | 60/5 |
| Texas Cellnet | Fixed wireless | 54% | 30/30 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Callender Lake’s trash rules yet
Pickup rules, the dump and recycling in Callender Lake.
Where your child goes to school
Public school districts and the school path by grade.
Most of Callender Lake (55%) is in Van Independent School District; parts are in Brownsboro Independent School District (44%).
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.
No town hall: the county runs things
Callender Lake is unincorporated, so Van Zandt 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.
Callender Lake is in ZIP code 75778
ZIP codes where Callender Lake residents live, with the share of the town in each.
| ZIP | Post office name | Share of Callender Lake | ZIP’s residents in Callender Lake |
|---|---|---|---|
| 75778 | Murchison, TX | 100% | 31% |
A few homes fall in 75754.
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 Callender Lake
Who supplies Callender Lake’s drinking water, and has it had violations?
The Callender Lake water system (EPA ID TX2340007). 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 0.0 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Callender Lake?
Oncor (Oncor Electric Delivery Co.), an investor-owned utility.
What internet providers serve Callender Lake?
Spectrum, Brightspeed, Texas Cellnet (FCC, as of December 2025).
What ZIP codes are in Callender Lake?
75778. Census 2020 ZIP Code Tabulation Areas.
What school district is Callender Lake in?
Van Independent School District. Parts of the city are in Brownsboro Independent School District.
How do I register to vote in Callender Lake?
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 Van Zandt 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.