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Mason County, WA Parcels & GIS Data

Mason County, WA parcel data: 64,175 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Mason County, Washington parcel data covering 64,175 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 64,175 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL). For the LBCS columns, only real classifications count: the to-be-determined and not-applicable placeholder codes are excluded.

ColumnCoverageRecords populated
lrid100%64,175
parcelid100%64,175
parcelid2100%64,173
ogparcelid100%64,175
ogparcelid2100%64,173
parentid<0.1%0
stackid<0.1%0
geoid100%64,175
statefp100%64,175
countyfp100%64,175
countyname100%64,175
cousubfp100%64,175
cousubname100%64,175
tractce100%64,175
tractname100%64,175
taxacctnum<0.1%0
taxyear<0.1%0
taxdistrict94.1%60,382
usecode96.3%61,828
usedesc5.0%3,177
zoningcode99.9%64,100
zoningdesc99.9%64,102
numbldgs71.2%45,712
numunits68.3%43,837
yearbuilt<0.1%0
numfloors<0.1%4
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue97.1%62,302
landvalue98.6%63,277
agvalue1.0%661
totalvalue4.2%2,678
taxacres<0.1%0
calcarea100%64,175
saleamt<0.1%0
saledate<0.1%0
ownertype4.7%2,999
ownername4.7%2,999
owneraddr4.7%2,996
ownercity4.7%2,996
ownerstate4.7%2,996
ownerzip4.7%2,996
parceladdr69.7%44,706
parcelcity64.6%41,468
parcelstate100%64,175
parcelzip100%64,160
legaldesc4.7%2,999
township98.6%63,304
section98.6%63,304
qtrsection98.6%63,304
range98.6%63,304
plssdesc98.6%63,304
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype2.8%1,790
accesstype2.8%1,790
iucnclass1.1%727
placename3.7%2,387
placetype4.6%2,971
firmid100%64,175
firmdate100%64,175
fldzone100%64,175
zonesubty87.5%56,124
staticbfe7.9%5,091
elevmin92.1%59,130
elevmax92.1%59,130
elevavg92.1%59,130
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
naicscode5.5%3,542
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%64,175
centroidx100%64,175
centroidy100%64,175
surfpointx100%64,175
surfpointy100%64,175
geom100%64,175
extras100%64,175
ownerlist4.7%2,986
placefp19.4%12,459
zoningurl97.2%62,396
lbcsactivity97.8%62,779
lbcsfunction95.1%61,033
lbcstype97.1%62,327
lbcscharacter98.5%63,210
lbcsownership8.4%5,361
sourceurl100%64,174

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) 2 entities · most recent acquisition per entity · generated 2026-10-10 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 orig_parcel_id parcel_id_nr landuse_cd value_bldg value_land situs_address situs_city_nm situs_zip_nr data_link geom 3 cols ⇢ parcelid parcelid2 usecode imprvalue landvalue parceladdr parcelcity parcelzip sourceurl geom extras ZONING s zoneid zonename wazazonegeneral info referenceurl geoid jurisdiction countyfp countyname wazazonespecific useresidential useretail useoffice usemanufacturing useheavyindustrial usegreenenergy usedatacenter usewarehouse useforestry useagriculture usemining dimmaxheight dimmaxstories dimbonusmaxheight dimbonusmaxstories dimminheight dimminstories dimmaxfar dimbonusmaxfar dimminfar dimmaxlotcoverbuildings dimmaxlotcover…ildingsandimpsu denminlotsizesqft denmaxdensity denbonusmaxdensity denmindensity denmaxprimaryunitsperlot denbonusmaxprimaryunitsperlot dennumadusallowed denaduoccupancyrequirement bonusah bonustdr minparkingressur minparkingresmh minparkingresapt minparkingretail minparkingrestaraunt minparkingoffice wazaspatialnormalizationdate minparkingresm…sure_deprecated minparkingresi…ntial_deprecate zoningcode zoningdesc zoningtype notes sourceurl extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 92.1% elevmin 92.1% elevmax 92.1% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 87.5% zonesubty 7.9% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 94.1% taxdistrict 71.2% numbldgs 68.3% numunits 100% parcelstate 98.6% township 98.6% section 98.6% qtrsection 98.6% range 98.6% plssdesc 97.2% zoningurl 97.8% lbcsactivity 95.1% lbcsfunction 97.1% lbcstype 98.5% lbcscharacter lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxdistrict usecode zoningcode zoningdesc numbldgs numunits imprvalue landvalue calcarea parceladdr parcelcity parcelstate parcelzip township section qtrsection range plssdesc firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras zoningurl lbcsactivity lbcsfunction lbcstype lbcscharacter sourceurl publish.parcel_layer columns not fed by these sources (49) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxyear, usedesc, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue, totalvalue, taxacres saleamt, saledate, ownertype, ownername, owneraddr, ownercity, ownerstate, ownerzip, legaldesc, book, page, block, lot, parceltype, accesstype iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl caapermit, cwapermit, rcrapermit, ownerlist, placefp, lbcsownership PARCEL 10 mapped · 3 kept in extras · 44 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL orig_parcel_id parcel_id_nr landuse_cd value_bldg value_land situs_address situs_city_nm situs_zip_nr data_link geom parcelid parcelid2 usecode imprvalue landvalue parceladdr parcelcity parcelzip sourceurl geom extras · 3 source columns preserved as json fips_nr, county_nm, sub_address extras not present in source — filled with NULL (44) 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, taxdistrict, parentid, heatfuel, fireplaces, heating, cooling foundation, roofcover, siding ZONING 6 mapped · 6 transformed · 3 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING s zoneid zonename wazazonegeneral info referenceurl geoid jurisdiction countyfp countyname wazazonespecific useresidential useretail useoffice usemanufacturing useheavyindustrial usegreenenergy usedatacenter usewarehouse useforestry useagriculture usemining dimmaxheight dimmaxstories dimbonusmaxheight dimbonusmaxstories dimminheight dimminstories dimmaxfar dimbonusmaxfar dimminfar dimmaxlotcoverbuildings dimmaxlotcoverbuildingsandimpsu denminlotsizesqft denmaxdensity denbonusmaxdensity denmindensity denmaxprimaryunitsperlot denbonusmaxprimaryunitsperlot dennumadusallowed denaduoccupancyrequirement bonusah bonustdr minparkingressur minparkingresmh minparkingresapt minparkingretail minparkingrestaraunt minparkingoffice wazaspatialnormalizationdate minparkingresmeasure_deprecated minparkingresidential_deprecate zoningcode s.zoneid::text zoningdesc s.zonename::text zoningtype s.wazazonegeneral::text notes s.info::text sourceurl s.referenceurl::text extras (json_build_object( 'geoid', s.geoid::text, 'jurisdiction', s.j… not present in source — filled with NULL (3) ordinance, setbacks, restrictions ⚠ 1 SELECT item(s) could not be parsed: s.geom

Neighboring counties

Parcel data for counties bordering Mason County:

Frequently asked questions

Where can I find Mason County, WA parcel and GIS data?

Land Records publishes a Mason County, WA parcel dataset in which every parcel carries its boundary polygon (GIS geometry) along with ownership, assessed value, land use, acreage, and sale history. Preview it in the interactive explorer on this page, or download the full Mason County, WA dataset as a GeoPackage or CSV.

How many parcels are in Mason County, WA?

The current dataset contains 64,175 parcel records for Mason County, WA, each with its boundary geometry and assessor attributes.

What is the FIPS code for Mason County, WA?

The FIPS code for Mason County, WA is 53045.

What information does each Mason County, WA parcel record include?

Each Mason County, WA parcel record includes 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 the most recent sale price and date — plus the parcel boundary polygon. Per-attribute fill rates are listed in the coverage table on this page.

Is Mason County, WA parcel data free?

You can preview Mason County, WA parcels for free in the interactive explorer. The complete dataset is available as a one-time download or through the nationwide parcel web service; see the download options on this page for current pricing.

Does Mason County, WA have an official GIS or property records website?

Yes — the official Mason County, WA government website is linked in the county details above. Land Records standardizes Mason County, WA assessor and recorder records into a single nationwide parcel schema with GIS boundary geometry.

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated