Marshall County, IA Parcels & GIS Data

Marshall County, IA parcel data: 27,013 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Marshall County, Iowa parcel data covering 27,013 property records.

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

Marshall County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 40,105, and was estimated to be 39,890 in 2025. The county seat and largest city is Marshalltown.

FIPS 19127

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

The FIPS code for Marshall County is 19127.

GrundyTamaStoryHardinJasperPoweshiekMarshall
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Attribute coverage

Marshall County contains 27,013 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%27,013
parcelid100%27,009
parcelid291.9%24,836
ogparcelid100%27,009
ogparcelid291.9%24,836
parentid<0.1%0
stackid<0.1%0
geoid100%27,013
statefp100%27,013
countyfp100%27,013
countyname100%27,013
cousubfp100%27,013
cousubname100%27,013
tractce100%27,013
tractname100%27,013
taxacctnum5.1%1,375
taxyear100%27,013
taxdistrict<0.1%0
usecode<0.1%0
usedesc<0.1%0
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs<0.1%0
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
imprvalue58.2%15,717
landvalue58.2%15,717
agvalue58.2%15,717
totalvalue58.2%15,717
taxacres<0.1%0
calcarea100%27,013
saleamt<0.1%0
saledate<0.1%0
ownertype58.2%15,716
ownername58.2%15,716
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr<0.1%0
parcelcity<0.1%0
parcelstate100%27,013
parcelzip100%27,013
legaldesc<0.1%0
township100%27,013
section100%27,013
qtrsection100%27,013
range100%27,013
plssdesc100%27,013
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.2%60
accesstype0.6%154
iucnclass0.3%90
placename52.9%14,284
placetype3.4%916
firmid100%27,013
firmdate100%27,013
fldzone100%27,013
zonesubty93.3%25,213
staticbfe<0.1%0
elevmin99.8%26,949
elevmax99.8%26,949
elevavg99.8%26,949
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
naicscode61.7%16,672
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated58.4%15,787
centroidx100%27,013
centroidy100%27,013
surfpointx100%27,013
surfpointy100%27,013
geom100%27,013
extras100%27,013
ownerlist36.6%9,891
placefp52.0%14,037
zoningurl<0.1%0

Schema mapping

How source columns from the acquired Marshall 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 — Marshall County, Iowa (19127) 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 parcelnumber tscid geom 5 cols ⇢ parcelid parcelid2 taxacctnum 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 58.4% 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 93.3% zonesubty 100% firmdate 100% firmid supplemented · derived / other pipelines 58.2% imprvalue 58.2% landvalue 58.2% agvalue 58.2% totalvalue 58.2% ownertype 58.2% ownername 100% parcelstate 100% parcelzip 100% township 100% section 100% qtrsection 100% range 100% plssdesc 52.9% placename 61.7% naicscode 52.0% placefp lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxyear imprvalue landvalue agvalue totalvalue calcarea ownertype ownername parcelstate parcelzip township section qtrsection range plssdesc placename firmid firmdate fldzone zonesubty elevmin elevmax elevavg naicscode updated centroidx centroidy surfpointx surfpointy geom extras placefp publish.parcel_layer columns not fed by these sources (49) — empty or below 50% fill in this county parentid, stackid, taxdistrict, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms halfbaths, fullbaths, taxacres, saleamt, saledate, owneraddr, ownercity, ownerstate, ownerzip, parceladdr, parcelcity, legaldesc, book, page block, lot, parceltype, accesstype, iucnclass, placetype, staticbfe, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding bldgtype, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist, zoningurl PARCEL 4 mapped · 5 kept in extras · 50 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL pin parcelnumber tscid geom parcelid parcelid2 taxacctnum geom extras · 5 source columns preserved as json pintext, txt_angle, globalid, shape_stlength__ shape_starea__ extras not present in source — filled with NULL (50) taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths imprvalue, landvalue, agvalue, totalvalue, taxacres, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip, parceladdr parcelcity, parcelstate, parcelzip, 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 Marshall County:

Frequently asked questions

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

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

How many parcels are in Marshall County, IA?

The current dataset contains 27,013 parcel records for Marshall County, IA, each with its boundary geometry and assessor attributes.

What is the FIPS code for Marshall County, IA?

The FIPS code for Marshall County, IA is 19127.

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

Each Marshall 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 Marshall County, IA parcel data free?

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

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

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