Land Records LogoLand Records
Contact Us

LaSalle County, IL Parcels & GIS Data

LaSalle County, IL parcel data: 70,831 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes LaSalle County, Illinois parcel data covering 70,831 property records.

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

LaSalle County is a county located within the Fox Valley and Illinois River Valley regions of the U.S. state of Illinois. As of the 2020 census, it had a population of 109,658. Its county seat and largest city is Ottawa.

FIPS 17099

Official county website: http://lasalle-il.gov/

The FIPS code for LaSalle County is 17099.

ExploreBuyDownload LaSalle County data
WoodfordLivingstonGrundyPutnamMarshallBureauLeeDeKalbKendallLaSalle
Hosted Web API$200/mo

Attribute coverage

LaSalle County contains 70,831 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%70,831
parcelid97.6%69,129
parcelid297.6%69,129
ogparcelid100%70,831
ogparcelid2100%70,831
parentid<0.1%0
stackid<0.1%0
geoid100%70,831
statefp100%70,831
countyfp100%70,831
countyname100%70,831
cousubfp100%70,831
cousubname100%70,831
tractce100%70,831
tractname100%70,831
taxacctnum<0.1%0
taxyear97.6%69,129
taxdistrict<0.1%0
usecode97.6%69,129
usedesc100%70,831
zoningcode25.7%18,178
zoningdesc21.0%14,860
numbldgs66.0%46,745
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
taxacres97.6%69,129
calcarea100%70,831
saleamt65.4%46,301
saledate65.6%46,456
ownertype97.6%69,128
ownername100%70,831
owneraddr100%70,831
ownercity100%70,831
ownerstate100%70,831
ownerzip100%70,831
parceladdr100%70,831
parcelcity90.2%63,861
parcelstate100%70,831
parcelzip100%70,831
legaldesc100%70,831
township100%70,827
section100%70,827
qtrsection100%70,827
range100%70,827
plssdesc100%70,827
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype0.8%542
accesstype0.8%542
iucnclass0.2%131
placename4.5%3,179
placetype4.4%3,124
firmid100%70,831
firmdate100%70,831
fldzone100%70,831
zonesubty97.3%68,940
staticbfe0.1%67
elevmin98.0%69,429
elevmax98.0%69,429
elevavg98.0%69,429
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
naicscode3.7%2,604
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%70,831
centroidx100%70,831
centroidy100%70,831
surfpointx100%70,831
surfpointy100%70,831
geom100%70,831
extras100%70,831
ownerlist97.3%68,894
placefp64.6%45,766
zoningurl12.1%8,597
lbcsactivity95.7%67,779
lbcsfunction95.7%67,775
lbcstype95.6%67,729
lbcscharacter96.4%68,309
lbcsownership97.7%69,226
sourceurl<0.1%0

Schema mapping

How source columns from the acquired LaSalle 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 — LaSalle County, Illinois (17099) 1 entity · most recent acquisition per entity · generated 2026-10-04 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 ZONING zoning type ordinance conditional_use comments moreinfo geom 7 cols ⇢ zoningcode zoningtype ordinance restrictions notes sourceurl geom extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 97.6% 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 97.3% zonesubty 0.1% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 97.6% parcelid 97.6% parcelid2 100% ogparcelid 100% ogparcelid2 97.6% usecode 100% usedesc 66.0% numbldgs 97.6% taxacres 65.4% saleamt 65.6% saledate 97.6% ownertype 100% ownername 100% owneraddr 100% ownercity 100% ownerstate 100% ownerzip 100% parceladdr 90.2% parcelcity 100% parcelstate 100% parcelzip 100% legaldesc 100% township 100% section 100% qtrsection 100% range 100% plssdesc 97.3% ownerlist 64.6% placefp 95.7% lbcsactivity 95.7% lbcsfunction 95.6% lbcstype 96.4% lbcscharacter 97.7% lbcsownership lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear usecode usedesc zoningcode numbldgs taxacres calcarea saleamt saledate ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc township section qtrsection range plssdesc firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist placefp lbcsactivity lbcsfunction lbcstype lbcscharacter lbcsownership sourceurl publish.parcel_layer columns not fed by these sources (40) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxdistrict, zoningdesc, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, imprvalue landvalue, agvalue, totalvalue, book, page, block, lot, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, zoningurl ZONING 7 mapped · 7 kept in extras · 2 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING zoning type ordinance conditional_use comments moreinfo geom zoningcode zoningtype ordinance restrictions notes sourceurl geom extras · 7 source columns preserved as json use_allowed, grp_zone, plan_com_approve_use council_approve_use, plan_com_approve_zone council_approve_zone, globalid extras not present in source — filled with NULL (2) zoningdesc, setbacks

Neighboring counties

Parcel data for counties bordering LaSalle County:

Frequently asked questions

Where can I find LaSalle County, IL parcel and GIS data?

Land Records publishes a LaSalle County, IL 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 LaSalle County, IL dataset as a GeoPackage or CSV.

How many parcels are in LaSalle County, IL?

The current dataset contains 70,831 parcel records for LaSalle County, IL, each with its boundary geometry and assessor attributes.

What is the FIPS code for LaSalle County, IL?

The FIPS code for LaSalle County, IL is 17099.

What information does each LaSalle County, IL parcel record include?

Each LaSalle County, IL 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 LaSalle County, IL parcel data free?

You can preview LaSalle County, IL 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 LaSalle County, IL have an official GIS or property records website?

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated