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The Annex handbook

Living in Annex, OR: what to set up and who to call

Annex has no town government of its own, so Malheur County runs its elections and most services, and its children attend Annex School District 29. Only 59% of addresses in Annex can get a wired internet connection, by the FCC’s map.

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

I’m new in town

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

PowerIdaho Powerinvestor-owned utility · 11.9¢/kWhMore →Internet6 providers100% of addresses get 100/20 MbpsMore →Trash & dumpNot on file yetWe don’t have Annex’s trash rules yetMore →SchoolAnnex School District 29Which school depends on grade and addressMore →Register to voteOnlineRules from vote.govMore →ZIP code97914Where people live, not P.O. boxesMore →
Home services

Power, water and internet

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

Electricity

Power comes from Idaho Power

Idaho Power (Idaho Power Co), an investor-owned utility, serves all of Annex. Its homes paid an average of 11.9¢ per kWh in 2025, about $129 a month (its average across Oregon).

Start or move service: idahopower.com · (800) 488-6151

Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.

Internet

6 home internet providers serve Annex

100% of 111 addresses can get 100/20 Mbps; 0% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
SparklightCable66%1,000/50
MTE CommunicationsFixed wireless100%300/100
VerizonFixed wireless94%300/20
T-MobileFixed wireless72%25/3
Anthem BroadbandFixed wireless59%500/100
AT&TFixed wireless51%25/3

FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.

Trash & recycling

We don’t have Annex’s trash rules yet

Pickup rules, the dump and recycling in Annex.

Trash, recycling and bulk pickupNot on fileAnnex 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.

Annex is in Annex School District 29.

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

Annex is unincorporated, so Malheur County is the local government.

Local governmentMalheur CountyAnnex is a census-designated place: no town hall of its ownCensus
Who runs elections hereMalheur County Clerk, Elections OfficeElections here are run by Malheur County (county election office). 251 B St W, Ste 4, Vale, OR 97918-1375 · (541) 473-5151 · [email protected]FVAP, Jun 2023
Register to voteOnlineIn Oregon you can register online until 21 days before Election Day, in person until 21 days before Election Day, or by mail (postmarked 21 days before).vote.govCheck your registration and polling placesos.oregon.govThe state’s voter lookup

Election office: FVAP local election office directory, updated Jun 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Oct 2, 2026.

ZIP codes & area codes

Annex is in ZIP code 97914

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

ZIPPost office nameShare of AnnexZIP’s residents in Annex
97914Ontario, OR100%1%

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 roomWeiser Memorial Hospital1.8 miles awayGet a library cardWeiser Public628 E 1st St. · (208) 549-1243

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

Questions about living in Annex

Who provides electricity in Annex?

Idaho Power (Idaho Power Co), an investor-owned utility. Its homes paid about 11.9¢ per kWh in 2025 (EIA).

What internet providers serve Annex?

Sparklight, MTE Communications, Verizon, T-Mobile, Anthem Broadband, AT&T (FCC, as of December 2025).

What ZIP codes are in Annex?

97914. Census 2020 ZIP Code Tabulation Areas.

What school district is Annex in?

Annex School District 29.

How do I register to vote in Annex?

In Oregon you can register online until 21 days before Election Day, in person until 21 days before Election Day, or by mail (postmarked 21 days before). Elections here are run by the Malheur County Clerk, Elections Office. Check your registration at sos.oregon.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 Oct 2, 2026 (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.