Living in South El Monte, CA: what to set up and who to call
Every home in South El Monte is in ZIP code 91733. South El Monte Library, at 1430 N. Central Ave, is the library in town.
I’m new in town
What to set up in South El Monte, 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 South El Monte.
Power comes from Southern California Edison
Southern California Edison (Southern California Edison Co), an investor-owned utility, serves all of South El Monte. 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 San Gabriel Valley Water Co.-El Monte
San Gabriel Valley Water Co.-El Monte supplies almost all of South El Monte. It draws ground water (EPA lists City of Arcadia and Valley County Water Dist. and Pico Rivera - City, Water Dept. and San Gabriel Valley Water Co-Montebello 2 and Whittier-City, Water Dept. as sellers) and serves 248,000 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 86% of the 332 systems serving 100,001–250,000 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. CA1910039.
4 home internet providers serve South El Monte
92% of 4,713 addresses can get 100/20 Mbps; 39% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 82% | 1,000/1,000 |
| AT&T | Fixed wireless, Fiber, DSL | 76% | 5,000/5,000 |
| Verizon | Fixed wireless | 59% | 300/20 |
| T-Mobile | Fixed wireless | 44% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in South El Monte depends on your street
Pickup days, the drop-off and recycling in South El Monte, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s dayLook up your day on cityofsouthelmonte.org
- Bulky itemsCall to book
South El Monte Public Works Maintenance Yard
1900 Central Avenue, South El Monte
We couldn’t find its opening hours.
From cityofsouthelmonte.org, the town’s official site, checked Oct 21, 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.
South El Monte is in El Monte Union High School District; parts are in El Monte City School District (38%) and Mountain View Elementary School District (31%) and Valle Lindo Elementary School District (31%).
C+School 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 Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
South El Monte is in ZIP code 91733
ZIP codes where South El Monte residents live, with the share of the town in each.
| ZIP | Post office name | Share of South El Monte | ZIP’s residents in South El Monte |
|---|---|---|---|
| 91733 | South El Monte, CA | 100% | 47% |
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 South El Monte
Who supplies South El Monte’s drinking water, and has it had violations?
San Gabriel Valley Water Co.-El Monte (EPA ID CA1910039). 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 0.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in South El Monte?
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 South El Monte?
Spectrum, AT&T, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in South El Monte?
91733. Census 2020 ZIP Code Tabulation Areas.
What school district is South El Monte in?
El Monte Union High School District. Parts of the city are in El Monte City School District and Mountain View Elementary School District and Valle Lindo Elementary School District.
How do I register to vote in South El Monte?
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: South El Monte’s own website (cityofsouthelmonte.org), 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.