LandBrief

Westchester County

Parcel & Property Data

240,774Total Parcels
—Avg. Market Value
259,229Total Acres

About This Data

LandBrief holds 240,774 parcel records for Westchester County, sourced from county records. Each includes the parcel boundary, and — where the county publishes them — owner, situs address, acreage, assessed values and legal description.

Data from the Westchester County assessor roll dated July 2019, loaded August 2026. See data sources for every county’s vintage.

Explore Westchester County

Westchester County by the Numbers

Median parcel size
0.22 acres
measured from mapped boundaries
90th-percentile parcel
1.6 acres
County land area
275,723 acres
U.S. Census measurement
Communities
77
5.4% of parcels outside any incorporated place

Who Owns Westchester County?

Share of the county’s 240,774 parcels by the kind of owner on record. Classified from owner names, so the boundaries are approximate; an entity the rules cannot place counts as an individual.

Owner typeShare of parcels
Individuals71.5%
Companies & organizations6.4%
Trusts & estates1.3%
Government2.4%
Other / unclassified18.5%

The largest owner on record is City Of Yonkers with 533 parcels — see the full landowner leaderboard.

Parcel Records (~240,774 total)

per page
Parcel IDOwnerAddressCityAcreage
22.15-2-1NYSTATE11 BEAR MT BRIDGE RDUnincorporated1897.00
10049-1Westchester Park CommissionLewisboro-BorderUnincorporated1820.00
10048-3Westchester Park CommissionHoney Hollow RdUnincorporated1280.00
50.15-1-1City of New York Dep1 Maple AveKatonah1168.28
68.13-1-24BENINI EDMOND &JANICE TRU118 UPPER NO HIGHLAND PLCroton-on-Hudson1018.00
48.12-25-11CITY OF NEW YORK—Unincorporated1006.08
48.12-25-11CITY OF NEW YORK—Unincorporated1006.08
68.7-2-1NYC AQUEDUCT MGR CITY OF56 CROTON DAM RDCroton On Hudson846.00
17.19-1-1NEW SOMERS II LLC294 RTE 100Unincorporated723.08
17.19-1-1SANCHEZ SAMUEL & IRENE294 RTE 100Jefferson Valley-Yorktown723.08
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Download Westchester County parcel data

All 240,774 parcels in Westchester County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.

Get Westchester County on FreeParcelData →

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Frequently Asked Questions

How many parcels are in Westchester County?

The Westchester County assessor roll on file records 240,774 parcels across 77 communities, with 5.4% lying outside any incorporated place.

Who owns the most land in Westchester County?

City Of Yonkers holds 533 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in Westchester County?

Measured from mapped boundaries, the median parcel is 0.22 acres, and nine parcels in ten are under 1.6 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

How much of Westchester County is government-owned?

Government entities — federal, state, and local — hold 2.4% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the Westchester County assessor roll dated July 2019. Counties deliver on their own schedules; the methodology page explains how records are processed and the data sources page tracks every county’s vintage.

Browse by City (77)

240,774 parcels across 77 communities in Westchester County.