Living in Caballo, NM: what to set up and who to call
Caballo has no town government of its own, so Sierra County runs its elections and most services, and its children attend Truth or Consequences Schools. Power in Caballo comes from Sierra Electric Coop, a cooperative utility rather than a private company.
I’m new in town
What to set up in Caballo, 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 Caballo.
Power comes from Sierra Electric Coop
Sierra Electric Coop (Sierra Electric Coop, Inc), a cooperative utility, serves all of Caballo.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Caballo Lake Mdwca water system
The Caballo Lake Mdwca water system supplies Caballo: about 0% of residents live in its service area. About 100% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 95 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 11,392 systems serving <=100 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, 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. NM3510027.
3 home internet providers serve Caballo
100% of 72 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Ethos Broadband | Fiber | 100% | 1,000/1,000 |
| Valor Telecommunications of Texas | DSL | 57% | 200/20 |
| T-Mobile | Fixed wireless | 8% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Caballo’s trash rules yet
Pickup rules, the dump and recycling in Caballo.
Where your child goes to school
Public school districts and the school path by grade.
Caballo is in Truth or Consequences Schools.
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
Caballo is unincorporated, so Sierra County is the local government.
Election office: FVAP local election office directory, updated Sep 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 27, 2026.
Caballo is in ZIP code 87931
ZIP codes where Caballo residents live, with the share of the town in each.
| ZIP | Post office name | Share of Caballo | ZIP’s residents in Caballo |
|---|---|---|---|
| 87931 | Caballo, NM | 100% | 12% |
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 Caballo
Who supplies Caballo’s drinking water, and has it had violations?
The Caballo Lake Mdwca water system (EPA ID NM3510027). 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 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Caballo?
Sierra Electric Coop (Sierra Electric Coop, Inc), a cooperative utility.
What internet providers serve Caballo?
Ethos Broadband, Valor Telecommunications of Texas, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Caballo?
87931. Census 2020 ZIP Code Tabulation Areas.
What school district is Caballo in?
Truth or Consequences Schools.
How do I register to vote in Caballo?
In New Mexico you can register online until 28 days before Election Day, in person up to and including Election Day, or by mail (postmarked 28 days before). Elections here are run by the Sierra County Clerk. Check your registration at voterportal.servis.sos.state.nm.us.
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 Aug 27, 2026 (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.