Allyn, WA Public Records
Allyn is an unincorporated community (a census-designated place) in Mason County, Washington, with an estimated population of 2,404 (U.S. Census Bureau, 2020–2024 American Community Survey) and 1.6 square miles of land.
🏢 Local Government for Allyn
Allyn is not an incorporated city or town, so it has no city hall, town clerk or local government of its own. Local government services and records for Allyn come from Mason County. Birth and death certificates, marriage records, deeds and court files come from the county and state offices below.
Population figure: U.S. Census Bureau, 2020–2024 American Community Survey 5-year estimate for the Allyn census-designated place (a statistical area, not a government).
↑ Back to record types🏛️ County Courthouse & Records Office for Allyn
Allyn is in Mason County. In Washington, deeds, mortgages and other land records are recorded by the County Auditor or county recording office. Divorce cases in Washington are heard by the Superior Court in each county. Wills and estates in Washington are handled by the Superior Court in each county.
📍 Mason County at a Glance
| County | Mason County |
| County population (2024 est.) | 69,632 Source: www2.census.gov ↗ |
⚖️ Mason County Superior Court
| Address | Location: 419 N 4th St, Fl 2, Shelton, WA 98584-3419, Mailing: PO Box X, Shelton, WA 98584-0078 |
| Directions | Get directions ↗ |
| Phone | (360) 427-9670 |
| Hours | Not stated |
| Records available | Superior court cases (civil, felony criminal, family, probate, juvenile) |
| Official website | masoncountywa.gov |
| Sources | courts.wa.gov/…/282.html ↗ |
| Last verified | October 16, 2026 |
📜 Mason County Clerk
| Address | Location: 419 N 4th St, Fl 2, Shelton, WA 98584-3419, Mailing: PO Box 340, Shelton, WA 98584-0078 |
| Directions | Get directions ↗ |
| Phone | (360) 427-9670 |
| Hours | Not stated |
| Records available | Superior court case files and records (the County Clerk is the clerk of the Superior Court) |
| Official website | masoncountywa.gov |
| Sources | courts.wa.gov/…/282.html ↗ |
| Last verified | October 16, 2026 |
See the full Mason County records page →
↑ Back to record types📋 Where to Get Records for Allyn
Where to get the most-requested public records for people and property in Allyn, WA:
📋 Allyn Records Guide
| Birth & death certificates | Washington State Department of Health – Vital RecordsCertified birth and death certificates for Washington are issued by the state vital records office; in some places a county or local office can also issue copies. |
| Deeds & property records | In Washington, deeds, mortgages and other land records are recorded by the County Auditor or county recording office. |
| Court cases & divorce | Mason County courthouse. Divorce cases in Washington are heard by the Superior Court in each county. |
| Wills & estates | Wills and estates in Washington are handled by the Superior Court in each county. |
| State court system | Washington Courts |
| Sex offender registry | Washington Sex Offender Information (WASPC) |