Tax parcel lookup for White Plains, Yonkers, and the Lower Hudson Valley
Westchester County borders New York City to the north, running from dense city-like communities such as Yonkers and Mount Vernon up through leafier suburbs like White Plains (the county seat), Scarsdale, and Rye, into more rural towns near the Putnam County line.
NY Property Peek's dataset includes over 255,000 individual tax parcels across Westchester County, each with details like year built, square footage, bedroom and bathroom counts, and school district where available — pulled from New York State's statewide tax parcel records.
View the interactive map for Westchester County →NY Property Peek holds 258,145 tax parcel records for Westchester County, spread across 43 towns, cities and villages and 43 school districts. The median Westchester County parcel sits on 0.24 acres, has 2,140 sq ft of finished living space, and dates to 1954. The median full market value on file is $460,526.
Construction dates for the 119,031 Westchester County parcels whose records name a year built.
| Built | Parcels | Share |
|---|---|---|
| Before 1900 | 3,806 | 3% |
| 1900–1949 | 46,458 | 39% |
| 1950–1979 | 44,600 | 37% |
| 1980–1999 | 14,954 | 13% |
| 2000 or later | 9,213 | 8% |
The most common property classes among the 257,051 Westchester County parcels that carry one. New York State assigns every parcel a class code describing how it is used.
| Property class | Parcels | Share |
|---|---|---|
| One family year-round residence | 163,995 | 64% |
| Apartments | 26,814 | 10% |
| Two family year-round residence | 19,720 | 8% |
| Residential vacant land | 11,886 | 5% |
| Three family year-round residence | 4,874 | 2% |
Where Westchester County's parcels are, by the municipality each one is assessed in.
| Municipality | Parcels | Share of county |
|---|---|---|
| Yonkers | 36,432 | 14% |
| New Rochelle | 15,758 | 6% |
| Greenburgh | 14,425 | 6% |
| Yorktown | 14,407 | 6% |
| White Plains | 13,972 | 5% |
| Mount Vernon | 11,173 | 4% |
| Cortlandt | 11,140 | 4% |
| Mount Pleasant | 9,299 | 4% |
Every figure above is counted directly from the 258,145 Westchester County records in this site's copy of New York State's statewide tax parcel dataset — none of it is estimated or modelled. Assessment records are a snapshot of what each assessor filed, so an individual parcel can be out of date or incomplete. Nothing here is a title search or a legal description of a property.