Westchester County GIS Maps

Westchester County Maps

The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.

County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.

Westchester County Parcels

Westchester County has 257,432 mapped parcels. The median assessed value is $15,410. The median lot size is 0.21 acres. 2,998 parcels are 10 acres or larger. The records carry 223,893 distinct owner names. About 3% of parcels list an owner mailing address outside New York. Owner names, mailing addresses, site addresses and assessed values are on nearly every parcel. Lot sizes reach 94.6%. Browse the interactive Westchester County Parcel viewer here.

Westchester County Parcel Data Coverage

Field coverage measured across all Westchester County parcel records. Download free sample data here.

Westchester County Population

Westchester County had 1,004,457 residents in 2020. That was 5.8% higher than in 2010. Westchester County added 80,998 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 2,333 people per square mile. Some of the county's most populated postal areas include Yonkers, New Rochelle and Yonkers.

Population Trend in Westchester County NY

Westchester County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.

Westchester County Zip Codes

Westchester County has 74 zip codes. Some of the county's most populated zip codes include Yonkers (10701), New Rochelle (10801) and Yonkers (10705). Yonkers is the largest zip by population, with about 68,704 residents or 7% of the county total. Together, the three largest zips account for about 15% of all county residents based on 2020 population estimates.

Most Populated Zip Codes in Westchester County NY

Westchester County Zip Code populations and trends per most recent census data.

Westchester County Demographics

Westchester County has a median age of 41.5, which makes the county a little older than New York overall. About 21.5% of residents are under 18, while 17.7% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 31.2% of the population, which points to a solid working-age base. About 52.5% of adults have a bachelor's degree or higher, above the statewide figure of 39.6%. The county has a more diverse population mix, with no single race or ethnicity accounting for all of the local story.

Key Demographics for Westchester County NY

Westchester County School Districts

Westchester County is served by 41 public school districts with 138,344 students enrolled in 2024. The largest districts on the county map are Yonkers City, New Rochelle City and White Plains City. Those three districts account for about 29% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.

Largest School Districts by Enrollment in Westchester County NY

Westchester County school district enrollment and trends per most recent NCES reporting data.

Westchester County Housing & Real Estate

Westchester County has a median home value of $638,400 and a median gross rent of $1,876. About 62% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the New York median, while rents come in above the state average. In March 2026, the median listing price was $678,443 and homes spent about 36 days on the market.

Businesses in Westchester County, NY

Westchester County has 37,536 business listings across 1,213 categories. The largest categories in Westchester County business listings are Real Estate Agents (994, 2.6%), Medical Offices (631, 1.7%), and Churches & Religious Organizations (621, 1.7%). The full Westchester County business listings dataset includes names, categories, addresses and contact details where available. Westchester County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.

Top Business Categories in Westchester County, NY

Westchester County Business Listings

Westchester County business listings sourced from Overture Maps. Includes locations with a high level of confidence.

Westchester County Basemaps

Westchester County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.

Preview a Live Package Demo

See exactly what is included in a county data package. Inspect how files are organized, the interactive data explorer and how maps and analytics are laid out. The demo loads a real sample package from New York — explore the full structure before you buy.