Photo: Shane.torgerson · CC BY-SA 3.0Living in Randolph AFB, TX: what to set up and who to call
Randolph AFB has no town government of its own, so Bexar County runs its elections and most services, and its children attend Randolph Field Independent School District. Power in Randolph AFB comes from City of San Antonio, a municipal utility rather than a private company.
I’m new in town
What to set up in Randolph AFB, 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 Randolph AFB.
Power comes from City of San Antonio
City of San Antonio (City of San Antonio - (TX)), a municipal utility, serves all of Randolph AFB. 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 Jbsa Randolph water system
The Jbsa Randolph water system supplies almost all of Randolph AFB. It draws ground water (EPA lists City of Schertz as seller) and serves 10,949 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 83% of the 3,525 systems serving 10,001–50,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 2.0 ppb, below the 15 ppb action level that applied. That’s higher than 65% 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. TX0150115.
Which providers serve Randolph AFB
This card will list the home internet providers the FCC’s National Broadband Map shows in Randolph AFB, the share of addresses that can get 100/20 Mbps and the share with fiber, with the map’s “as of” date.
Source to come: FCC Broadband Data Collection.
We don’t have Randolph AFB’s trash rules yet
Pickup rules, the dump and recycling in Randolph AFB.
Where your child goes to school
Public school districts and the school path by grade.
Most of Randolph AFB (97%) is in Randolph Field Independent School District; parts are in Judson Independent School District (3%).
ASchool gradeSee 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
Randolph AFB is unincorporated, so Bexar 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.
Randolph AFB is in ZIP code 78148
ZIP codes where Randolph AFB residents live, with the share of the town in each.
| ZIP | Post office name | Share of Randolph AFB | ZIP’s residents in Randolph AFB |
|---|---|---|---|
| 78148 | Universal City, TX | 99% | 6% |
A few homes fall in 78150.
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 Randolph AFB
Who supplies Randolph AFB’s drinking water, and has it had violations?
The Jbsa Randolph water system (EPA ID TX0150115). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none. Its latest lead 90th percentile was 2.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Randolph AFB?
City of San Antonio (City of San Antonio - (TX)), a municipal utility. Its homes paid about 12.4¢ per kWh in 2025 (EIA).
What ZIP codes are in Randolph AFB?
78148. Census 2020 ZIP Code Tabulation Areas.
What school district is Randolph AFB in?
Randolph Field Independent School District. Parts of the city are in Judson Independent School District.
How do I register to vote in Randolph AFB?
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): pending.