Living in Olmos Park, TX: what to set up and who to call
Power in Olmos Park comes from City of San Antonio, a municipal utility rather than a private company. The closest public drop-off to Olmos Park is SouthWaste Disposal, 5 miles out; the town decides whether residents may use it.
I’m new in town
What to set up in Olmos Park, 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 Olmos Park.
Power comes from City of San Antonio
City of San Antonio (City of San Antonio - (TX)), a municipal utility, serves all of Olmos Park. 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 Olmos Park. 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.
5 home internet providers serve Olmos Park
100% of 799 addresses can get 100/20 Mbps; 96% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 98% | 1,000/35 |
| AT&T | Fiber, Fixed wireless, DSL | 97% | 5,000/5,000 |
| Astound Broadband | Cable | 82% | 1,500/50 |
| Verizon | Fixed wireless | 95% | 300/20 |
| T-Mobile | Fixed wireless | 48% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
The nearest public drop-off is 5 miles away
Pickup rules, the dump and recycling in Olmos Park.
SouthWaste Disposal
1375 Creekview, San Antonio, TX · run by Waste Resources Management
This isn’t Olmos Park’s own facility. Whether Olmos Park residents may use it is the town’s rule: check olmospark.org.
OpenStreetMap, as of Oct 9, 2026. © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Most of Olmos Park (96%) is in Alamo Heights Independent School District; parts are in San Antonio Independent School District (4%).
ASchool 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.
Olmos Park is in ZIP code 78212
ZIP codes where Olmos Park residents live, with the share of the town in each.
| ZIP | Post office name | Share of Olmos Park | ZIP’s residents in Olmos Park |
|---|---|---|---|
| 78212 | San Antonio, TX | 100% | 8% |
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 Olmos Park
Who supplies Olmos Park’s 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 Olmos Park?
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 Olmos Park?
Spectrum, AT&T, Astound Broadband, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Olmos Park?
78212. Census 2020 ZIP Code Tabulation Areas.
What school district is Olmos Park in?
Alamo Heights Independent School District. Parts of the city are in San Antonio Independent School District.
How do I register to vote in Olmos Park?
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: 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.