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New Castle County, DE Parcels & GIS Data

New Castle County, DE parcel data: 198,286 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes New Castle County, Delaware parcel data covering 198,286 property records.

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

New Castle County is the northernmost of the three counties of the U.S. state of Delaware. As of the 2020 census, the population was 570,719, making it the most populous county in Delaware, with nearly 60% of the state's population of 989,948. The county seat is Wilmington, which is also the state's most populous city.

FIPS 10003

The FIPS code for New Castle County is 10003.

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Attribute coverage

New Castle County contains 198,286 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%198,286
parcelid100%198,247
parcelid20.7%1,461
ogparcelid100%198,277
ogparcelid20.7%1,461
parentid<0.1%0
stackid<0.1%0
geoid100%198,286
statefp100%198,286
countyfp100%198,286
countyname100%198,286
cousubfp100%198,286
cousubname100%198,286
tractce100%198,286
tractname100%198,286
taxacctnum<0.1%81
taxyear<0.1%56
taxdistrict100%198,205
usecode<0.1%24
usedesc99.7%197,772
zoningcode98.2%194,782
zoningdesc98.2%194,756
numbldgs97.4%193,138
numunits<0.1%76
yearbuilt1.1%2,218
numfloors1.1%2,202
bldgsqft1.1%2,218
bedrooms0.9%1,833
halfbaths0.5%941
fullbaths0.9%1,833
imprvalue18.0%35,712
landvalue20.0%39,724
agvalue<0.1%0
totalvalue20.1%39,832
taxacres100%198,277
calcarea100%198,286
saleamt18.6%36,870
saledate19.7%39,037
ownertype99.8%197,810
ownername99.7%197,744
owneraddr99.6%197,447
ownercity99.6%197,433
ownerstate99.6%197,407
ownerzip99.5%197,368
parceladdr100%198,281
parcelcity100%198,269
parcelstate100%198,286
parcelzip100%198,286
legaldesc96.1%190,533
township99.5%197,290
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book18.8%37,212
page18.8%37,212
block39.2%77,644
lot92.3%183,095
parceltype1.9%3,699
accesstype1.9%3,699
iucnclass1.7%3,358
placename5.3%10,491
placetype5.2%10,377
firmid100%198,286
firmdate100%198,286
fldzone100%198,286
zonesubty98.0%194,414
staticbfe0.9%1,868
elevmin99.8%197,891
elevmax99.8%197,891
elevavg99.8%197,891
fireplaces<0.1%0
heating0.7%1,447
heatfuel0.7%1,447
cooling0.7%1,447
foundation0.9%1,833
roofcover0.9%1,791
siding0.9%1,833
bldgtype<0.1%0
naicscode5.5%10,935
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%198,222
centroidx100%198,286
centroidy100%198,286
surfpointx100%198,286
surfpointy100%198,286
geom100%198,286
extras100%198,286
ownerlist99.1%196,407

Schema mapping

How source columns from the acquired New Castle 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 — New Castle County, Delaware (10003) 1 entity · most recent acquisition per entity · generated 2026-08-08 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 parcel__parcel_name acres care_of_first_name parcel_address updated geom county 4 cols ⇢ parcelid parcelid2 taxacres ownername parceladdr updated geom taxdistrict extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 0.0% taxyear 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 98.0% zonesubty 0.9% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 100% usedesc 98.2% zoningcode 98.2% zoningdesc 97.4% numbldgs 100% owneraddr 100% ownercity 100% ownerstate 100% ownerzip 100% parcelcity 100% parcelstate 100% parcelzip 96.1% legaldesc 99.5% township 92.3% lot 99.1% ownerlist lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear taxdistrict usedesc zoningcode zoningdesc numbldgs taxacres calcarea ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc township lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist publish.parcel_layer columns not fed by these sources (43) — empty or below 50% fill in this county parentid, stackid, taxacctnum, usecode, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, imprvalue, landvalue, agvalue totalvalue, saleamt, saledate, section, qtrsection, range, plssdesc, book, page, block, parceltype, accesstype, iucnclass, placename, placetype fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit PARCEL 8 mapped · 4 kept in extras · 46 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL pin parcel__parcel_name acres care_of_first_name parcel_address updated geom county parcelid parcelid2 taxacres ownername parceladdr updated geom taxdistrict extras · 4 source columns preserved as json objectid_1, vacant_status, vacant_status_date, f6 extras not present in source — filled with NULL (46) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, owneraddr, ownercity, ownerstate, ownerzip, parcelcity, parcelstate parcelzip, legaldesc, township, section, qtrsection, range, plssdesc, book, page, block, lot, sourceurl, parentid, fireplaces, heating, cooling foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering New Castle County:

Frequently asked questions

Where can I find New Castle County, DE parcel and GIS data?

Land Records publishes a New Castle County, DE 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 New Castle County, DE dataset as a GeoPackage or CSV.

How many parcels are in New Castle County, DE?

The current dataset contains 198,286 parcel records for New Castle County, DE, each with its boundary geometry and assessor attributes.

What is the FIPS code for New Castle County, DE?

The FIPS code for New Castle County, DE is 10003.

What information does each New Castle County, DE parcel record include?

Each New Castle County, DE 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 New Castle County, DE parcel data free?

You can preview New Castle County, DE 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.

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated