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St. Mary Parish, LA Parcels & GIS Data

St. Mary Parish, LA parcel data: 38,204 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes St. Mary Parish, Louisiana parcel data covering 38,204 property records.

This page documents parcel-level coverage for St. Mary Parish, Louisiana. 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 St. Mary Parish are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete St. Mary Parish property dataset.

St. Mary Parish is a parish located in the U.S. state of Louisiana. As of the 2020 census, the population was 49,406.

FIPS 22101

Official county website: https://www.stmaryparishla.gov/

The FIPS code for St. Mary Parish is 22101.

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St. MartinTerrebonneIberiaAssumptionSt. Mary
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Attribute coverage

St. Mary Parish contains 38,204 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%38,204
parcelid100%38,203
parcelid299.6%38,063
ogparcelid5.5%2,104
ogparcelid25.1%1,964
parentid<0.1%0
stackid<0.1%0
geoid100%38,204
statefp100%38,204
countyfp100%38,204
countyname100%38,204
cousubfp100%38,204
cousubname100%38,204
tractce100%38,204
tractname100%38,204
taxacctnum94.9%36,240
taxyear99.6%38,049
taxdistrict<0.1%1
usecode25.3%9,661
usedesc25.3%9,661
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs47.6%18,188
numunits39.2%14,985
yearbuilt<0.1%0
numfloors36.3%13,874
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue97.9%37,413
landvalue97.9%37,413
agvalue97.9%37,413
totalvalue99.6%38,049
taxacres99.9%38,183
calcarea100%38,204
saleamt<0.1%0
saledate<0.1%0
ownertype98.3%37,549
ownername99.9%38,164
owneraddr99.9%38,164
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr99.8%38,140
parcelcity28.4%10,860
parcelstate100%38,204
parcelzip95.1%36,318
legaldesc99.9%38,164
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
parceltype100%38,204
accesstype100%38,204
iucnclass99.2%37,907
placename99.4%37,984
placetype100%38,204
firmid100%38,204
firmdate100%38,204
fldzone100%38,204
zonesubty57.2%21,845
staticbfe33.9%12,957
elevmin98.0%37,423
elevmax98.0%37,423
elevavg98.0%37,423
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
naicscode100%38,204
frsid<0.1%3
dfrurl<0.1%3
caapermit<0.1%3
cwapermit<0.1%3
rcrapermit<0.1%3
updated100%38,190
centroidx100%38,204
centroidy100%38,204
surfpointx100%38,204
surfpointy100%38,204
geom100%38,204
extras5.5%2,104
ownerlist<0.1%0

Schema mapping

How source columns from the acquired St. Mary Parish 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 — St. Mary Parish, Louisiana (22101) 1 entity · most recent acquisition per entity · generated 2026-07-25 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 parcelid apn taxacres parcelstate sourceurl geom 5 cols ⇢ parcelid parcelid2 taxacres parcelstate sourceurl geom extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% taxyear 100% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 98.0% elevmin 98.0% elevmax 98.0% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 57.2% zonesubty 33.9% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 94.9% taxacctnum 97.9% imprvalue 97.9% landvalue 97.9% agvalue 100% totalvalue 98.3% ownertype 100% ownername 100% owneraddr 100% parceladdr 95.1% parcelzip 100% legaldesc 100% parceltype 100% accesstype 99.2% iucnclass 99.4% placename 100% placetype 100% naicscode lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxyear imprvalue landvalue agvalue totalvalue taxacres calcarea ownertype ownername owneraddr parceladdr parcelstate parcelzip legaldesc parceltype accesstype iucnclass placename placetype firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg naicscode updated centroidx centroidy surfpointx surfpointy geom extras publish.parcel_layer columns not fed by these sources (44) — empty or below 50% fill in this county parentid, stackid, taxdistrict, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms halfbaths, fullbaths, saleamt, saledate, ownercity, ownerstate, ownerzip, parcelcity, township, section, qtrsection, range, plssdesc, book page, block, lot, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, frsid, dfrurl, caapermit, cwapermit rcrapermit, ownerlist PARCEL 6 mapped · 5 kept in extras · 48 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcelid apn taxacres parcelstate sourceurl geom parcelid parcelid2 taxacres parcelstate sourceurl geom extras · 5 source columns preserved as json gid, county_name, fips_code, vintage_id, geoid extras not present in source — filled with NULL (48) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip, parceladdr parcelcity, parcelzip, legaldesc, township, section, qtrsection, range, plssdesc, book, page, block, lot, updated, taxdistrict, parentid fireplaces, heating, cooling, foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering St. Mary Parish:

Frequently asked questions

Where can I find St. Mary Parish, LA parcel and GIS data?

Land Records publishes a St. Mary Parish, LA 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 St. Mary Parish, LA dataset as a GeoPackage or CSV.

How many parcels are in St. Mary Parish, LA?

The current dataset contains 38,204 parcel records for St. Mary Parish, LA, each with its boundary geometry and assessor attributes.

What is the FIPS code for St. Mary Parish, LA?

The FIPS code for St. Mary Parish, LA is 22101.

What information does each St. Mary Parish, LA parcel record include?

Each St. Mary Parish, LA 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 St. Mary Parish, LA parcel data free?

You can preview St. Mary Parish, LA 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 St. Mary Parish, LA have an official GIS or property records website?

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated