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The Trowbridge handbook

Living in Trowbridge, CA: what to set up and who to call

Trowbridge has no town government of its own, so Sutter County runs its elections and most services, and its children attend East Nicolaus Joint Union High School District. For an emergency, Adventist Health and Rideout is the closest ER, 15.3 miles away.

Which school will my kid attend?How do I register to vote?ZIP codes
Trowbridge has no town government. It’s a census-designated place in Sutter County, so the county and regional agencies provide most services. This page answers what we can; the same answers appear on Trowbridge’s town page under “Getting set up”.

I’m new in town

What to set up in Trowbridge, and who provides it. Tap an answer for the details and where they come from.

PowerPG&Einvestor-owned utility · 37.5¢/kWhMore →
InternetWhich providers serve TrowbridgeData pending · FCC map (D4)
Trash & dumpNot on file yetWe don’t have Trowbridge’s trash rules yetMore →SchoolBrowns Elementary and East Nicolaus Joint Union High districtsWhich school depends on grade and addressMore →Register to voteOnlineRules from vote.govMore →ZIP codes95674, 95659Where people live, not P.O. boxesMore →
Home services

Power, water and internet

Who to call to start service at a new address in Trowbridge.

Electricity

Power comes from PG&E

PG&E (Pacific Gas & Electric Co.), an investor-owned utility, serves all of Trowbridge. 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.

Internet

Which providers serve Trowbridge

Data pending · D4

This card will list the home internet providers the FCC’s National Broadband Map shows in Trowbridge, 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.

Trash & recycling

We don’t have Trowbridge’s trash rules yet

Pickup rules, the dump and recycling in Trowbridge.

Trash, recycling and bulk pickupNot on fileTrowbridge has no town government of its own, so look for trash and recycling rules on the county’s site.
Schools

Where your child goes to school

Public school districts and the school path by grade.

Trowbridge kids go to
K–82 schoolsDepends on your address
9–12East Nicolaus Highin Nicolaus

Trowbridge is in two districts that split the grades: East Nicolaus Joint Union High School District and Browns Elementary School District.

Test scores and every school: see Schools →

U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.

Government & voting

No town hall: the county runs things

Trowbridge is unincorporated, so Sutter County is the local government.

Local governmentSutter CountyTrowbridge is a census-designated place: no town hall of its ownCensus
Who runs elections hereSutter County Clerk-ElectionsElections here are run by Sutter County (county election office). 1435 Veterans Memorial Cir, Yuba City, CA 95993-3011 · (530) 822-7122 · [email protected]FVAP, Sep 2025
Register to voteOnlineIn 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).vote.govCheck your registration and polling placevoterstatus.sos.ca.govThe state’s voter lookup

Election office: FVAP local election office directory, updated Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.

ZIP codes & area codes

Trowbridge spans 2 ZIP codes

ZIP codes where Trowbridge residents live, with the share of the town in each.

ZIPPost office nameShare of TrowbridgeZIP’s residents in Trowbridge
95674Rio Oso, CA74%20%
95659Nicolaus, CA26%8%

Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.

Everyday places

Getting around, the ER and the library

One line each; the subject pages have the rest.

Nearest emergency roomAdventist Health and Rideout15.3 miles awayGet a library cardTwelve Bridges485 Twelve Bridges Drive · (916) 434-2410

ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.

Questions about living in Trowbridge

Who provides electricity in Trowbridge?

PG&E (Pacific Gas & Electric Co.), an investor-owned utility. Its homes paid about 37.5¢ per kWh in 2025 (EIA).

What ZIP codes are in Trowbridge?

95674 (74%), 95659 (26%), by share of residents. Census 2020 ZIP Code Tabulation Areas.

What school district is Trowbridge in?

East Nicolaus Joint Union High School District and Browns Elementary School District. Parts of the city are in Marcum-Illinois Union Elementary School District.

How do I register to vote in Trowbridge?

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 Sutter County Clerk-Elections. Check your registration at voterstatus.sos.ca.gov.

Sources & dates

Every answer above names its source. Here they are with their dates.

  • 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.