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The Markham handbook

Living in Markham, WA: what to set up and who to call

Markham has no town government of its own, so Grays Harbor County runs its elections and most services, and its children attend Ocosta School District. Power in Markham comes from PUD No 1 of Grays Harbor County, a political subdivision utility rather than a private company.

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

I’m new in town

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

PowerPUD No 1 of Grays Harbor Countypolitical subdivision utility · 12.7¢/kWhMore →Internet3 providers95% of addresses get 100/20 MbpsMore →Trash & dumpNot on file yetWe don’t have Markham’s trash rules yetMore →SchoolOcosta School DistrictWhich school depends on grade and addressMore →Register to voteOnlineRules from vote.govMore →ZIP code98520Where people live, not P.O. boxesMore →
Home services

Power, water and internet

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

Electricity

Power comes from PUD No 1 of Grays Harbor County

PUD No 1 of Grays Harbor County (PUD No 1 of Grays Harbor County), a political subdivision utility, serves all of Markham. Its homes paid an average of 12.7¢ per kWh in 2025, about $133 a month (its average across Washington).

Start or move service: ghpud.org · (360) 532-4220

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

Internet

3 home internet providers serve Markham

95% of 77 addresses can get 100/20 Mbps; 0% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
XfinityCable97%1,200/35
T-MobileFixed wireless22%100/20
VerizonFixed wireless3%25/6

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

Trash & recycling

We don’t have Markham’s trash rules yet

Pickup rules, the dump and recycling in Markham.

Trash, recycling and bulk pickupNot on fileMarkham 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.

Markham kids go to
PK–6Ocosta Elementary Schoolin Westport
7–12Ocosta Junior - Senior Highin Westport

Markham is in Ocosta 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

Markham is unincorporated, so Grays Harbor County is the local government.

Local governmentGrays Harbor CountyMarkham is a census-designated place: no town hall of its ownCensus
Who runs elections hereGrays Harbor County AuditorElections here are run by Grays Harbor County (county election office). 100 W Broadway, Ste 2, Montesano, WA 98563-3614 · (360) 249-4232 · [email protected]FVAP, Sep 2024
Register to voteOnlineIn Washington you can register online until 8 days before Election Day, in person up to and including Election Day, or by mail (received 8 days before).vote.govCheck your registration and polling placevoter.votewa.govThe state’s voter lookup

Election office: FVAP local election office directory, updated Sep 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 30, 2026.

ZIP codes & area codes

Markham is in ZIP code 98520

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

ZIPPost office nameShare of MarkhamZIP’s residents in Markham
98520Aberdeen, WA100%0%
Area code360Wikidata

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 roomWillapa Harbor Hospital19.3 miles awayGet a library cardOcean Shores Public Library573 Point Brown Ave NW · (360) 289-3919

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

Questions about living in Markham

Who provides electricity in Markham?

PUD No 1 of Grays Harbor County (PUD No 1 of Grays Harbor County), a political subdivision utility. Its homes paid about 12.7¢ per kWh in 2025 (EIA).

What internet providers serve Markham?

Xfinity, T-Mobile, Verizon (FCC, as of December 2025).

What ZIP codes are in Markham?

98520. Census 2020 ZIP Code Tabulation Areas.

What school district is Markham in?

Ocosta School District.

How do I register to vote in Markham?

In Washington you can register online until 8 days before Election Day, in person up to and including Election Day, or by mail (received 8 days before). Elections here are run by the Grays Harbor County Auditor. Check your registration at voter.votewa.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 Sep 30, 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.