Photo: Ghostgrrrl626 · CC BY-SA 4.0Living in Rosemead, CA: what to set up and who to call
All of Rosemead gets its mail under one ZIP code, 91770. Spectrum and AT&T both wire most of Rosemead; 28% of addresses can get fiber.
I’m new in town
What to set up in Rosemead, 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 Rosemead.
Power comes from Southern California Edison
Southern California Edison (Southern California Edison Co), an investor-owned utility, serves all of Rosemead. 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-South San Gabriel water system
The Gswc-South San Gabriel water system supplies Rosemead: about 36% of residents live in its service area. Cal/Am Water Company - San Marino serves another 31%. San Gabriel Valley Water Co.-El Monte serves another 13%. San Gabriel County WD serves another 9%. Amarillo Mutual Water Company serves another 6%. About 8% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists Metropolitan Water Dist. of So. Cal. as seller) and serves 26,240 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 2024–Dec 2026, was 0.6 ppb, below the 15 ppb action level that applied. That’s lower than 64% 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. CA1910223.
4 home internet providers serve Rosemead
98% of 11,153 addresses can get 100/20 Mbps; 28% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 97% | 1,000/50 |
| AT&T | DSL, Fixed wireless, Fiber | 76% | 5,000/5,000 |
| Verizon | Fixed wireless | 86% | 300/20 |
| T-Mobile | Fixed wireless | 68% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in Rosemead
Pickup days, the drop-off and recycling in Rosemead, from the town’s own site.
Accepted at the curb
- Paper & Cardboard
- Metal Cans
- Plastic & Glass
We couldn’t find pickup days or drop-off hours. Check rosemeadca.gov →
From rosemeadca.gov, cms2.revize.com, 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.
Rosemead is in El Monte Union High School District; parts are in Alhambra Unified School District (9-12) (32%) and Garvey Elementary School District (32%) and Rosemead Elementary School District (31%) and Montebello Unified School District (4%).
A−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.
Rosemead is in ZIP code 91770
ZIP codes where Rosemead residents live, with the share of the town in each.
| ZIP | Post office name | Share of Rosemead | ZIP’s residents in Rosemead |
|---|---|---|---|
| 91770 | Rosemead, CA | 99% | 86% |
A few homes fall in 91776, 91733. 91771, 91772 are P.O. box or single-organization ZIPs with no homes.
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 Rosemead
Who supplies Rosemead’s drinking water, and has it had violations?
The Gswc-South San Gabriel water system (EPA ID CA1910223). 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 0.6 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Rosemead?
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 Rosemead?
Spectrum, AT&T, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Rosemead?
91770. Census 2020 ZIP Code Tabulation Areas.
What school district is Rosemead in?
El Monte Union High School District. Parts of the city are in Alhambra Unified School District (9-12) and Garvey Elementary School District and Rosemead Elementary School District and Montebello Unified School District.
How do I register to vote in Rosemead?
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: Rosemead’s own website (rosemeadca.gov, cms2.revize.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.