Photo: Frank Schulenburg · CC BY-SA 4.0Living in Williams, CA: what to set up and who to call
Tap water in Williams comes from the City of Williams water system, which has a clean five-year EPA record (about 20% of systems its size had a health-based violation) and a latest lead result below detection. Public schools here are run by Williams Unified School District.
I’m new in town
What to set up in Williams, 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 Williams.
Power comes from PG&E
PG&E (Pacific Gas & Electric Co.), an investor-owned utility, serves all of Williams. Its homes paid an average of 37.5¢ per kWh in 2025, about $174 a month (its average across California, for customers on its standard service). California lets you buy power from another supplier; 66% of PG&E’s home customers do, and PG&E still delivers it.
Start or move service: pgecorp.com
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Williams water system
The City of Williams water system supplies almost all of Williams. It draws ground water and serves 5,538 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 80% of the 5,012 systems serving 3,301–10,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, 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. CA0610004.
6 home internet providers serve Williams
91% of 1,502 addresses can get 100/20 Mbps; 90% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Frontier | Fiber, DSL | 87% | 7,000/7,000 |
| Race Communications | Fiber | 76% | 1,000/1,000 |
| AT&T | Fixed wireless, DSL | 35% | 100/20 |
| Succeed.Net | Fixed wireless | 100% | 100/50 |
| Verizon | Fixed wireless | 24% | 300/20 |
| T-Mobile | Fixed wireless | 6% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in Williams
Pickup days, the drop-off and recycling in Williams, from the town’s own site.
Porter Recycle Center
122 7th Street
We couldn’t find pickup days or drop-off hours. Check cms3.revize.com →
From cms3.revize.com, cityofwilliams.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.
Williams is in Williams Unified School District.
CSchool 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 Jul 2021; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Williams is in ZIP code 95987
ZIP codes where Williams residents live, with the share of the town in each.
| ZIP | Post office name | Share of Williams | ZIP’s residents in Williams |
|---|---|---|---|
| 95987 | Williams, CA | 100% | 88% |
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 Williams
Who supplies Williams’ drinking water, and has it had violations?
The City of Williams water system (EPA ID CA0610004). It reported no health-based violations to EPA in the five years to October 2026; 80% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Williams?
PG&E (Pacific Gas & Electric Co.), an investor-owned utility. Its homes paid about 37.5¢ per kWh in 2025 (EIA).
What internet providers serve Williams?
Frontier, Race Communications, AT&T, Succeed.Net, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Williams?
95987. Census 2020 ZIP Code Tabulation Areas.
What school district is Williams in?
Williams Unified School District.
How do I register to vote in Williams?
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 Colusa County Clerk-Elections Department. 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: Williams’ own website (cms3.revize.com, cityofwilliams.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.