Living in Terrell Hills, TX: what to set up and who to call
Power in Terrell Hills comes from City of San Antonio, a municipal utility rather than a private company. The closest public drop-off to Terrell Hills is SouthWaste Disposal, 3 miles out; the town decides whether residents may use it.
I’m new in town
What to set up in Terrell Hills, 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 Terrell Hills.
Power comes from City of San Antonio
City of San Antonio (City of San Antonio - (TX)), a municipal utility, serves all of Terrell Hills. Its homes paid an average of 12.4¢ per kWh in 2025, about $133 a month (its average across Texas).
Start or move service: cpsenergy.com · (800) 773-3077
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from San Antonio Water System
San Antonio Water System supplies almost all of Terrell Hills. It buys treated surface water (EPA lists Water Exploration Stein Roger Well Field and Central Texas Regional WSC and Gbra Western Canyon Water Supply and Crwa Lake Dunlap WTP and Schertz Seguin Local Government Corporat as sellers) and serves 2,643,729 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 82% of the 27 systems serving more than 1,000,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 1.6 ppb, below the 15 ppb action level that applied. The highest in five years was 2.2 ppb. That’s lower than 52% 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. TX0150018.
6 home internet providers serve Terrell Hills
100% of 1,952 addresses can get 100/20 Mbps; 99% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 99% | 1,000/35 |
| AT&T | Fiber, Fixed wireless, DSL | 99% | 5,000/5,000 |
| Astound Broadband | Cable, Fiber | 90% | 1,500/1,500 |
| Verizon | Fixed wireless | 98% | 300/20 |
| Alamo Broadband | Fixed wireless | 60% | 450/100 |
| T-Mobile | Fixed wireless | 37% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Terrell Hills depends on your street
Pickup days, the drop-off and recycling in Terrell Hills, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s dayLook up your day on terrell-hills.com
- RecyclingEvery week, Wed
From terrell-hills.com, the town’s official site, checked Oct 21, 2026; pages dated 2026. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Most of Terrell Hills (76%) is in Alamo Heights Independent School District; parts are in North East Independent School District (24%).
BSchool gradeSee 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 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Terrell Hills is in ZIP code 78209
ZIP codes where Terrell Hills residents live, with the share of the town in each.
| ZIP | Post office name | Share of Terrell Hills | ZIP’s residents in Terrell Hills |
|---|---|---|---|
| 78209 | San Antonio, TX | 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 Terrell Hills
Who supplies Terrell Hills’ drinking water, and has it had violations?
San Antonio Water System (EPA ID TX0150018). It reported no health-based violations to EPA in the five years to October 2026; 82% of systems its size had none. Its latest lead 90th percentile was 1.6 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Terrell Hills?
City of San Antonio (City of San Antonio - (TX)), a municipal utility. Its homes paid about 12.4¢ per kWh in 2025 (EIA).
What internet providers serve Terrell Hills?
Spectrum, AT&T, Astound Broadband, Verizon, Alamo Broadband, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Terrell Hills?
78209. Census 2020 ZIP Code Tabulation Areas.
What school district is Terrell Hills in?
Alamo Heights Independent School District. Parts of the city are in North East Independent School District.
How do I register to vote in Terrell Hills?
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 Bexar 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: Terrell Hills’ own website (terrell-hills.com), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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.