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Mason County, WA Parcels & GIS Data

Mason County, WA parcel data: 60,513 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Mason County, Washington parcel data covering 60,513 property records.

This page documents parcel-level coverage for Mason County, Washington. Each parcel record carries its boundary polygon (GIS geometry) along with attributes such as the parcel ID/APN, owner name and mailing address, situs (property) address, assessed land and improvement values, acreage, land-use and zoning codes, year built, and most recent sale price and date. Exact fill rates for Mason County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Mason County property dataset.

Mason County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 65,726. The county seat and only incorporated city is Shelton.

FIPS 53045

Official county website: http://www.co.mason.wa.us

The FIPS code for Mason County is 53045.

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Attribute coverage

Mason County contains 60,513 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%60,513
parcelid100%60,513
parcelid2100%60,513
ogparcelid100%60,513
ogparcelid2100%60,513
parentid<0.1%0
stackid<0.1%0
geoid100%60,513
statefp100%60,513
countyfp100%60,513
countyname100%60,513
cousubfp100%60,513
cousubname100%60,513
tractce100%60,513
tractname100%60,513
taxacctnum<0.1%0
taxyear<0.1%0
taxdistrict100%60,513
usecode97.1%58,744
usedesc95.8%57,984
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs70.4%42,585
numunits64.7%39,158
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue69.9%42,312
landvalue95.8%57,954
agvalue35.7%21,622
totalvalue94.5%57,211
taxacres<0.1%0
calcarea100%60,513
saleamt<0.1%0
saledate<0.1%0
ownertype95.8%57,984
ownername95.8%57,984
owneraddr95.7%57,935
ownercity95.7%57,939
ownerstate95.7%57,936
ownerzip95.7%57,934
parceladdr93.4%56,513
parcelcity91.7%55,490
parcelstate100%60,513
parcelzip100%60,502
legaldesc95.8%57,984
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype2.8%1,713
accesstype2.8%1,713
iucnclass1.1%685
placename3.8%2,287
placetype4.7%2,851
firmid100%60,513
firmdate100%60,513
fldzone100%60,513
zonesubty88.7%53,660
staticbfe7.0%4,242
elevmin92.2%55,779
elevmax92.2%55,779
elevavg92.2%55,779
fireplaces<0.1%0
heating<0.1%0
heatfuel<0.1%0
cooling<0.1%0
foundation<0.1%0
roofcover<0.1%0
siding<0.1%0
bldgtype<0.1%0
naicscode4.8%2,882
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%60,513
centroidx100%60,513
centroidy100%60,513
surfpointx100%60,513
surfpointy100%60,513
geom100%60,513
extras100%60,513
lrversion100%60,513

Schema mapping

How source columns from the acquired Mason County GIS layers map into the harmonized entity schemas and assemble into the published parcel table, alongside supplemented fields (elevation, flood zone) and deterministic columns.

Schema mapping — Mason County, Washington (53045) 1 entity · most recent acquisition per entity · generated 2026-07-13 direct column transformed (expression) geometry extras json supplemented determined ALL ENTITIES → FINAL PARCEL SCHEMA Harmonized entity columns assemble into publish.parcel_layer — matched by column name. Supplemented fields show their fill rate in this county. SOURCE COLUMNS HARMONIZED ENTITIES PUBLISH.PARCEL_LAYER PARCEL parcel_id_nr orig_parcel_id landuse_cd value_bldg value_land situs_address situs_city_nm situs_zip_nr data_link geom county_nm 4 cols ⇢ parcelid parcelid2 usecode imprvalue landvalue parceladdr parcelcity parcelzip sourceurl geom taxdistrict extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% updated 100% lrversion geom · derived from geometry geom dem.us_1m · USGS 1m DEM 92.2% elevmin 92.2% elevmax 92.2% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 88.7% zonesubty 7.0% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 95.8% usedesc 70.4% numbldgs 64.7% numunits 94.5% totalvalue 95.8% ownertype 95.8% ownername 95.7% owneraddr 95.7% ownercity 95.7% ownerstate 95.7% ownerzip 100% parcelstate 95.8% legaldesc lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxdistrict usecode usedesc numbldgs numunits imprvalue landvalue totalvalue calcarea ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lrversion publish.parcel_layer columns not fed by these sources (44) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxyear, zoningcode, zoningdesc, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue taxacres, saleamt, saledate, township, section, qtrsection, range, plssdesc, book, page, block, lot, parceltype, accesstype, iucnclass placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit cwapermit, rcrapermit PARCEL 11 mapped · 4 kept in extras · 43 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcel_id_nr orig_parcel_id landuse_cd value_bldg value_land situs_address situs_city_nm situs_zip_nr data_link geom county_nm parcelid parcelid2 usecode imprvalue landvalue parceladdr parcelcity parcelzip sourceurl geom taxdistrict extras · 4 source columns preserved as json fips_nr, sub_address, orig_landuse_cd, globalid extras not present in source — filled with NULL (43) taxacctnum, taxyear, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths agvalue, totalvalue, taxacres, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip, parcelstate, legaldesc, township section, qtrsection, range, plssdesc, book, page, block, lot, updated, parentid, fireplaces, heating, cooling, foundation, roofcover, siding heatfuel

Neighboring counties

Parcel data for counties bordering Mason County:

On this page

Attribute coverageSchema mappingNeighboring countiesRelated