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Mason County · property records

Mason County property records & parcel data.

Look up property records in Mason County, WA — find who owns a property, plus mailing address, assessor & tax value, land use and APN. tracts pulls the full parcel roll via the Washington statewide parcel layer, with the source and pull date stamped on every record. Search a live sample below, or get the full Mason County dataset as a bulk file or API feed.

Or ask our research agent about Mason County.

Tax-delinquent list

We don’t have tax-delinquent inventory for Mason County yet — that coverage is currently 19 Florida counties, built from county advertised certificate lists. See which counties are covered.

Search Mason County property records

Free property records lookup.

Find who owns a property — search by owner name, address, or APN. This is a live sample; the full dataset is available as a bulk file or through the API.

Loading Mason County parcels…

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APNOwnerAddressLand useYearAssessed value

Looking up a single address? Run a full property report — owner, valuation, sale history and tax-delinquency status for one address, with the county source and pull date on every field.

Get the full Mason County dataset

The complete county file — owner, mailing, assessor value, full lineage — by bulk download or API.

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Data overview

What's in the dataset.

County
Mason County, WA
FIPS
53045
County seat
Shelton
Population
69,632
Data source
Washington statewide parcel layer
Source type
Statewide assessor layer
Parcels
Confirmed on extract
State coverage
39 / 39 counties
Lineage
Source + pull date on every record
Washington statewide parcel layer·Pulled June 2026
Packaged for your vertical

Same parcels, different buyer.

The same Mason County records, packaged for each buyer vertical.

FAQ

Common questions about Mason County data.

Financing a deal here? 4 hard money lenders were active in Mason County in 2024 see who is lending and at what rates.