Westchester County GIS Portal (New York)

Westchester County Assessor Offices are charged with determining the value of taxable property in their county or local area in order to calculate Westchester County property taxes. In addition to property values, Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) maps. These Westchester County GIS maps can show public property, parks, property divisions, and roads, as well as property assessments and property taxes in Westchester County, New York. These maps can also include place names, bodies of water, flood zones, property zones, and other geographic information. Some Assessors may keep historic GIS maps that include historic property tax assessments. These maps may be available on the Westchester County Assessor Office website.

Bedford Assessor Bedford Hills NY 321 Bedford Road 10507 914-666-5149

Cortlandt Assessor Cortlandt NY 1 Heady Street 10567 914-734-1040

Harrison Town Assessor Harrison NY 1 Heineman Place 10528 914-670-3040

Lewisboro Town Assessors South Salem NY 99 Elmwood Road 10590 914-763-5592

Mount Vernon Assessor Mount Vernon NY 1 Roosevelt Square North, Ste 1 10550 914-665-2325

North Salem Town Assessor North Salem NY 270 Titicus Road 10560 914-669-5214

Ossining Assessor Ossining NY 16 Croton Avenue 10562 914-762-8274

Peekskill Assessor Peekskill NY 840 Main Street 10566 914-734-4190

Pelham Town Assessor Pelham NY 34 Fifth Avenue 10803 914-738-1642

Pleasantville Assessor Pleasantville NY 80 Wheeler Avenue 10570 914-769-1500

Rye Assessor Rye NY 1051 Boston Post Road 10580 914-967-7565

Rye Brook Assessor Port Chester NY 10 Pearl Street 10573 914-939-3566

Scarsdale Village Assessor Scarsdale NY 1001 Post Road, # 1 10583 914-722-1110

Somers Assessor Heritage Hills NY 337 U.s. 202 10589 914-277-3504

Yonkers Assessor Yonkers NY 87 Nepperhan Avenue, Ste 400 10701 914-377-6200


Westchester County Clerk Offices maintain public records for a county or local government, which includes GIS maps. These maps provide detailed information on the area, including Westchester County property maps that show boundaries, public property, property divisions, and in some cases, population information in Westchester County, New York. They may also include property value assessments and property tax rates. Westchester County GIS maps can show place names, bodies of water, zoning information, flood zones, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations, and these maps are often available online through the Clerk Office website.

Bedford Town Clerk Bedford Hills NY 321 Bedford Road 10507 914-666-4534

Briarcliff Manor Village Clerk Briarcliff Manor NY 1111 Pleasantville Road 10510 914-941-4802

Cortland Town Clerk Cortlandt NY 1 Heady Street 10567 914-734-1020

Dobbs Ferry Village Clerk Dobbs Ferry NY 112 Main Street 10522 914-693-6161

Eastchester Town Clerk Eastchester NY 40 Mill Road, Rm 103 10709 914-771-3351

Greenburgh Town Clerk White Plains NY 320 Tarrytown Road 10607 914-993-1500

Harrison Clerk Harrison NY 1 Heineman Place 10528 914-670-3010

Hastings-On-Hudson Village Clerk Hastings-on-Hudson NY 7 Maple Avenue 10706 914-478-3400

Larchmont Village Clerk Larchmont NY 120 Larchmont Avenue, Ste 1 10538 914-834-6230

Lewisboro Town Clerk South Salem NY 11 Main St 10590 914-763-3511

Mt Pleasant Town Clerk Valhalla NY 1 Town Hall Plaza 10595 914-769-1766

Mt Vernon City Clerk Mount Vernon NY 1 Roosevelt Square North, Ste 1 10550 914-665-2348

Pelham Clerk Pelham NY 34 Fifth Avenue 10803 914-738-2205

Pleasantville Clerk Pleasantville NY 80 Wheeler Avenue 10570 914-769-2027

Rye City Clerk Rye NY 1051 Boston Post Road 10580 914-967-7371

Somers Town Clerk Heritage Hills NY 335 U.s. 202 10589 914-277-3323

Tarrytown Village Clerk Tarrytown NY 1 Depot Plaza 10591 914-631-1652

Tuckahoe Clerk Tuckahoe NY 65 Main St, Ste 208 10707 914-961-4787

Westchester County Clerk White Plains NY 110 Dr.Martin Luther King Junior Boulevard 10601 914-995-3070

Westchester County Town and City Halls provide municipal services for their town or city, including preserving vital records and maintaining records on their jurisdiction such as Westchester County GIS maps. The GIS maps at a Westchester County Town or City Hall can include property boundaries, public property, unclaimed parcels, and roads, as well as appraisal values for properties and property tax assessments in Westchester County, New York. These GIS maps may also show population information, place names, zoning boundaries, bodies of water, flood zones, and other geographic information. Some Town and City Halls also have historical maps of their area. These maps are often available to the public on the Westchester County Town and City Hall website.

Cortlandt Manor Town Hall Cortlandt NY 1 Heady Street 10567 914-734-1046

Greenburgh Town Hall White Plains NY 177 Hillside Avenue 10607 914-993-1546

Harrison Town Hall Harrison NY 1 Heineman Place 10528 914-670-3005

Irvington Town Hall Irvington NY 85 Main Street 10533 914-591-6602

Mt Vernon City Hall Mount Vernon NY 1 Roosevelt Square North, Ste 2 10550 914-665-2300

New Castle Town Hall Chappaqua NY 200 South Greeley Avenue 10514 914-238-4771

New Rochelle City Hall New Rochelle NY 515 North Avenue 10801 914-654-2000

North Castle Town Hall Armonk NY 15 Bedford Road 10504 914-273-3321

North Salem Town Hall North Salem NY 266 Titicus Road 10560 914-669-5577

Peekskill City Hall Peekskill NY 840 Main Street 10566 914-737-3400

Pelham Town Hall Pelham NY 34 Fifth Avenue 10803 914-738-0777

Rye City Hall Rye NY 1051 Boston Post Road 10580 914-967-7404

White Plains City Hall White Plains NY 255 Main Street 10601 914-422-1208

Yonkers City Hall Yonkers NY 945 Broadway 10701 914-377-6483

Yorktown Town Hall Yorktown Heights NY 363 Underhill Avenue 10598 914-962-5722


Westchester County Recorders of Deeds keep real estate records to ensure the accuracy of property and land records. In addition to deeds, Recorders of Deeds also have detailed county and local maps, including Westchester County GIS maps that show property lines, building information, public property, unclaimed parcels, as well as property value assessments and property tax information. These GIS maps may also include place names, zoning boundaries, bodies of water, flood zones, and other geographic information in Westchester County, New York. The Recorder of Deeds may also have historic GIS maps. These maps are often available on the Westchester County Recorder of Deeds website.

Westchester County Recorder of Deeds White Plains NY 110 Dr.Martin Luther King Junior Boulevard 10601 914-995-3080