Living in Westmont, CA: what to set up and who to call
Westmont has no town government of its own, so Los Angeles County runs its elections and most services, and its children attend Los Angeles Unified School District. For emergencies, Westmont is closest to Memorial Hospital of Gardena, 3.4 miles away.
I’m new in town
What to set up in Westmont, 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 Westmont.
Power comes from Southern California Edison
Southern California Edison (Southern California Edison Co), an investor-owned utility, serves all of Westmont. Its homes paid an average of 31.5¢ per kWh in 2025, about $149 a month (its average across California, for customers on its standard service). California lets you buy power from another supplier; 30% of Southern California Edison’s home customers do, and Southern California Edison still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Gswc - Southwest water system
The Gswc - Southwest water system supplies almost all of Westmont. It buys treated surface water (EPA lists Liberty Utilities - Compton and California Water Service Co. - Dominguez and Hawthorne-City Water Dept. and Inglewood- City, Water Dept. and Los Angeles-City, Dept. of Water & Power as sellers) and serves 277,740 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 86% of the 84 systems serving 250,001–500,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 1.7 ppb, below the 15 ppb action level that applied. That’s higher than 58% 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. CA1910155.
5 home internet providers serve Westmont
100% of 5,704 addresses can get 100/20 Mbps; 33% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 99% | 1,000/35 |
| AT&T | DSL, Fiber, Fixed wireless | 86% | 5,000/5,000 |
| Verizon | Fixed wireless | 50% | 1,000/75 |
| T-Mobile | Fixed wireless | 36% | 100/20 |
| Starry | Fixed wireless | 6% | 500/100 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Westmont’s trash rules yet
Pickup rules, the dump and recycling in Westmont.
Where your child goes to school
Public school districts and the school path by grade.
Westmont is in Los Angeles Unified School District.
B−School 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
Westmont is unincorporated, so Los Angeles County is the local government.
Election office: FVAP local election office directory, updated Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Westmont spans 2 ZIP codes
ZIP codes where Westmont residents live, with the share of the town in each.
| ZIP | Post office name | Share of Westmont | ZIP’s residents in Westmont |
|---|---|---|---|
| 90044 | Los Angeles, CA | 68% | 24% |
| 90047 | Los Angeles, CA | 32% | 22% |
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 Westmont
Who supplies Westmont’s drinking water, and has it had violations?
The Gswc - Southwest water system (EPA ID CA1910155). It reported no health-based violations to EPA in the five years to October 2026; 86% of systems its size had none. Its latest lead 90th percentile was 1.7 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Westmont?
Southern California Edison (Southern California Edison Co), an investor-owned utility. Its homes paid about 31.5¢ per kWh in 2025 (EIA).
What internet providers serve Westmont?
Spectrum, AT&T, Verizon, T-Mobile, Starry (FCC, as of December 2025).
What ZIP codes are in Westmont?
90044 (68%), 90047 (32%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Westmont in?
Los Angeles Unified School District.
How do I register to vote in Westmont?
In California you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before). Elections here are run by the Los Angeles Registrar-Recorder County Clerk. Check your registration at voterstatus.sos.ca.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.