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Castle Valley and surroundingsPhoto: Carter Pape · CC BY-SA 4.0
The Castle Valley handbook

Living in Castle Valley, UT: what to set up and who to call

All of Castle Valley gets its mail under one ZIP code, 84532. E Fiber and Frontier wire most of Castle Valley, and 100% of addresses can get fiber.

I’m new in town

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

Home services

Power, water and internet

Who to call to start service at a new address in Castle Valley.

Electricity

Power comes from Rocky Mountain Power

Rocky Mountain Power (PacifiCorp), an investor-owned utility, serves all of Castle Valley. Its homes paid an average of 13.5¢ per kWh in 2025, about $101 a month (its average across Utah).

Start or move service: pacificorp.com · (888) 221-7070

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

Internet

3 home internet providers serve Castle Valley

100% of 286 addresses can get 100/20 Mbps; 100% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
E FiberFiber100%1,000/1,000
FrontierDSL62%45/3
River Canyon WirelessFixed wireless96%75/25

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

Trash & recycling

We don’t have Castle Valley’s trash rules yet

Pickup rules, the dump and recycling in Castle Valley.

Schools

Where your child goes to school

Public school districts and the school path by grade.

Castle Valley kids go to
K–6Helen M. Knight Schoolin Moab
7–8Grand County Middlein Moab
9–12Grand County Highin Moab

Castle Valley is in Grand 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

Town hall and registering to vote

Who to call, and how to register.

Election office: FVAP local election office directory, updated Nov 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Mar 13, 2026.

ZIP codes & area codes

Castle Valley is in ZIP code 84532

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

ZIPPost office nameShare of Castle ValleyZIP’s residents in Castle Valley
84532Moab, UT100%3%
Area code435Wikidata

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.

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

Questions about living in Castle Valley

Who provides electricity in Castle Valley?

Rocky Mountain Power (PacifiCorp), an investor-owned utility. Its homes paid about 13.5¢ per kWh in 2025 (EIA).

What internet providers serve Castle Valley?

E Fiber, Frontier, River Canyon Wireless (FCC, as of December 2025).

What ZIP codes are in Castle Valley?

84532. Census 2020 ZIP Code Tabulation Areas.

What school district is Castle Valley in?

Grand School District.

How do I register to vote in Castle Valley?

In Utah you can register online until 11 days before Election Day, in person up to and including Election Day, or by mail (received 11 days before). Elections here are run by the Grand County Clerk/Auditor. Check your registration at votesearch.utah.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 Mar 13, 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.