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Marion County, IA Parcels & GIS Data

Marion County, IA parcel data: 23,931 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Marion County, Iowa parcel data covering 23,931 property records.

This page documents parcel-level coverage for Marion County, Iowa. 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 Marion County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Marion County property dataset.

Marion County is a county in the U.S. state of Iowa. As of the 2020 census, the population was 33,414. The county seat is Knoxville.

FIPS 19125

Official county website: https://iowalandrecords.org/

The FIPS code for Marion County is 19125.

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Attribute coverage

Marion County contains 23,931 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%23,931
parcelid100%23,931
parcelid260.6%14,507
ogparcelid100%23,931
ogparcelid21.1%272
parentid<0.1%0
stackid<0.1%0
geoid100%23,931
statefp100%23,931
countyfp100%23,931
countyname100%23,931
cousubfp100%23,931
cousubname100%23,931
tractce100%23,931
tractname100%23,931
taxacctnum<0.1%0
taxyear100%23,931
taxdistrict<0.1%0
usecode<0.1%0
usedesc0.3%68
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs1.3%304
numunits<0.1%0
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%0
landvalue<0.1%0
agvalue<0.1%0
totalvalue<0.1%0
taxacres<0.1%0
calcarea100%23,931
saleamt<0.1%0
saledate<0.1%0
ownertype99.9%23,909
ownername99.9%23,909
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr63.7%15,255
parcelcity99.6%23,844
parcelstate100%23,931
parcelzip100%23,931
legaldesc<0.1%0
township100%23,921
section100%23,921
qtrsection100%23,921
range100%23,921
plssdesc100%23,921
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.1%15
accesstype0.3%63
iucnclass0.1%32
placename40.3%9,656
placetype3.5%839
firmid100%23,931
firmdate100%23,931
fldzone100%23,931
zonesubty94.4%22,593
staticbfe<0.1%0
elevmin100%23,924
elevmax100%23,924
elevavg100%23,924
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
naicscode48.5%11,616
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated78.1%18,693
centroidx100%23,931
centroidy100%23,931
surfpointx100%23,931
surfpointy100%23,931
geom100%23,931
extras100%23,931
ownerlist66.9%16,019
placefp39.9%9,559
zoningurl<0.1%0

Schema mapping

How source columns from the acquired Marion 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 — Marion County, Iowa (19125) 1 entity · most recent acquisition per entity · generated 2026-08-30 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 pin owner housenum address city state zip geom 3 cols ⇢ parcelid ownername parceladdr parcelcity parcelstate parcelzip 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 78.1% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 100% elevmin 100% elevmax 100% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 94.4% zonesubty 100% firmdate 100% firmid supplemented · derived / other pipelines 60.6% parcelid2 100% township 100% section 100% qtrsection 100% range 100% plssdesc 66.9% ownerlist lrid parcelid parcelid2 ogparcelid geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear calcarea ownertype ownername parceladdr parcelcity parcelstate parcelzip township section qtrsection range plssdesc firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist publish.parcel_layer columns not fed by these sources (55) — empty or below 50% fill in this county ogparcelid2, parentid, stackid, taxacctnum, taxdistrict, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors bldgsqft, bedrooms, halfbaths, fullbaths, imprvalue, landvalue, agvalue, totalvalue, taxacres, saleamt, saledate, owneraddr, ownercity ownerstate, ownerzip, legaldesc, book, page, block, lot, parceltype, accesstype, iucnclass, placename, placetype, staticbfe, fireplaces heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, placefp zoningurl PARCEL 7 mapped · 1 transformed · 3 kept in extras · 47 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL pin owner housenum address city state zip geom parcelid ownername parceladdr NULLIF(btrim(concat_ws(' ', housenum, address)), '')::text parcelcity parcelstate parcelzip geom extras · 3 source columns preserved as json id, shapeid, compid extras not present in source — filled with NULL (47) parcelid2, taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms halfbaths, fullbaths, imprvalue, landvalue, agvalue, totalvalue, taxacres, saleamt, saledate, owneraddr, ownercity, ownerstate, ownerzip legaldesc, township, section, qtrsection, range, plssdesc, book, page, block, lot, updated, sourceurl, taxdistrict, parentid, heatfuel fireplaces, heating, cooling, foundation, roofcover, siding

Neighboring counties

Parcel data for counties bordering Marion County:

Frequently asked questions

Where can I find Marion County, IA parcel and GIS data?

Land Records publishes a Marion County, IA 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 Marion County, IA dataset as a GeoPackage or CSV.

How many parcels are in Marion County, IA?

The current dataset contains 23,931 parcel records for Marion County, IA, each with its boundary geometry and assessor attributes.

What is the FIPS code for Marion County, IA?

The FIPS code for Marion County, IA is 19125.

What information does each Marion County, IA parcel record include?

Each Marion County, IA 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 Marion County, IA parcel data free?

You can preview Marion County, IA 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 Marion County, IA have an official GIS or property records website?

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated