Westchester County, New York
Westchester County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 1,006,447 (2024)
ID: 194486
|
County | Official County Government |
Contact: PLANNER
148 MARTINE AVE, WHITE PLAINS NY 10601-3311
|
|
GUS Population: 211,040 (2024)
ID: 109593
|
Municipal | Municipal Government Within County |
Contact: CITY MAYOR
40 S BROADWAY, 1, YONKERS NY 10701-3715
|
|
GUS Population: 93,955 (2024)
ID: 212078
|
Township | Municipal Government Within County |
Contact: TOWN SUPERVISOR
177 HILLSIDE AVE, FL 2, WHITE PLAINS NY 10607-1438
|
|
GUS Population: 85,512 (2024)
ID: 170680
|
Municipal | Municipal Government Within County |
Contact: CITY MANAGER
515 NORTH AVE, NEW ROCHELLE NY 10801-3416
|
|
GUS Population: 71,999 (2024)
ID: 186665
|
Municipal | Municipal Government Within County |
Contact: PLANNING ADMINISTRATOR
1 ROOSEVELT SQ, STE 2, MOUNT VERNON NY 10550-2012
|
|
GUS Population: 62,561 (2024)
ID: 131303
|
Municipal | Municipal Government Within County |
Contact: CHIEF ACCOUNTANT
255 MAIN ST, WHITE PLAINS NY 10601-2409
|
|
GUS Population: 48,568 (2024)
ID: 171072
|
Township | Municipal Government Within County |
Contact: TOWN CLERK
222 GRACE CHURCH ST, SUITE 1, PORT CHESTER NY 10573-5195
|
|
GUS Population: 45,052 (2024)
ID: 171068
|
Township | Municipal Government Within County |
Contact: TOWN SUPERVISOR
1 TOWN HALL PLAZA, VALHALLA NY 10595
|
|
GUS Population: 41,763 (2024)
ID: 109723
|
Township | Municipal Government Within County |
Contact: DEPUTY DIRECTOR OF TECHNEAL SERVICES
1 HEADY ST, CORTLANDT MANOR NY 10567-1248
|
|
GUS Population: 39,203 (2024)
ID: 171070
|
Township | Municipal Government Within County |
Contact: TOWN SUPERVISOR
16 CROTON AVE, STE 2, OSSINING NY 10562-4994
|
|
GUS Population: 35,735 (2024)
ID: 171074
|
Township | Municipal Government Within County |
Contact: TOWN SUPERVISOR
363 UNDERHILL AVE, YORKTOWN HEIGHTS NY 10598-4526
|
|
GUS Population: 33,860 (2024)
ID: 139403
|
Township | Municipal Government Within County |
Contact: TOWN CLERK
40 MILL RD, RM 103, EASTCHESTER NY 10709-1548
|
|
VILLAGE OF HARRISON
GUS Population: 31,321 (2024)
ID: 170686
|
Municipal | Municipal Government Within County |
Contact: ASSISTANT TO MAYOR
1 HEINEMAN PL, HARRISON NY 10528-3399
|
|
GUS Population: 31,240 (2024)
ID: 109725
|
Township | Municipal Government Within County |
Contact: ASSTISTANT TOWN ADMINISTRATOR
740 W BOSTON POST RD, MAMARONECK NY 10543-3353
|
|
GUS Population: 30,957 (2024)
ID: 194797
|
Municipal | Municipal Government Within County |
Contact: MAYOR
222 GRACE CHURCH ST, PORT CHESTER NY 10573-5168
|
|
GUS Population: 30,780 (2023)
ID: 211398
|
Township | Municipal Government Within County |
Contact: TOWN SUPERVISOR
1 HEINEMAN PL, HARRISON NY 10528-3399
|
|
GUS Population: 26,895 (2024)
ID: 212887
|
Municipal | Municipal Government Within County |
Contact: VILLAGE PLANNER
101 ROUTE 9A, OSSINING NY 10562
|
|
GUS Population: 25,757 (2024)
ID: 170682
|
Municipal | Municipal Government Within County |
Contact: CITY MANAGER
840 MAIN ST, PEEKSKILL NY 10566-2016
|
|
TOWN OF SOMERS
GUS Population: 21,239 (2024)
ID: 109727
|
Township | Municipal Government Within County |
Contact: TOWN SUPERVISOR
335 ROUTE 202, SOMERS NY 10589-3226
|
|
GUS Population: 19,783 (2024)
ID: 170678
|
Municipal | Municipal Government Within County |
Contact: VILLAGE MANAGER
123 MAMARONECK AVE, MAMARONECK NY 10543-3760
|
|
GUS Population: 18,082 (2024)
ID: 202227
|
Township | Municipal Government Within County |
Contact: TOWN SUPERVISOR
200 S GREELEY AVE, CHAPPAQUA NY 10514-3399
|
|
GUS Population: 18,036 (2024)
ID: 131302
|
Municipal | Municipal Government Within County |
Contact: ASSISTANT VILLAGE MANAGER
1001 POST RD, SCARSDALE NY 10583-9908
|
|
GUS Population: 16,659 (2024)
ID: 171066
|
Township | Municipal Government Within County |
Contact: COMPTROLLER
321 BEDFORD RD, STE 1, BEDFORD HILLS NY 10507-1324
|
|
GUS Population: 16,463 (2024)
ID: 193776
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
1051 BOSTON POST RD, RYE NY 10580-2945
|
|
GUS Population: 13,192 (2024)
ID: 171071
|
Township | Municipal Government Within County |
Contact: TOWN SUPERVISOR
34 FIFTH AVE, PELHAM NY 10803-1594
|
|
GUS Population: 12,264 (2024)
ID: 171069
|
Township | Municipal Government Within County |
Contact: TOWN SUPERVISOR
15 BEDFORD RD, 1, ARMONK NY 10504-1898
|
|
GUS Population: 12,083 (2024)
ID: 171067
|
Township | Municipal Government Within County |
Contact: DIRECTOR OF FINANCE
PO BOX 500, SOUTH SALEM NY 10590-0500
|
|
GUS Population: 11,829 (2024)
ID: 170683
|
Municipal | Municipal Government Within County |
Contact: VILLAGE ADMINISTRATOR
1 DEPOT PLZ, TARRYTOWN NY 10591-3605
|
|
GUS Population: 11,513 (2024)
ID: 170677
|
Municipal | Municipal Government Within County |
Contact: ADMINISTRATOR
112 MAIN ST, DOBBS FERRY NY 10522-4622
|
|
GUS Population: 11,427 (2024)
ID: 139361
|
Municipal | Municipal Government Within County |
Contact: VILLAGE MAYOR
28 BEEKMAN AVE, SLEEPY HOLLOW NY 10591-2602
|
|
GUS Population: 10,698 (2024)
ID: 170679
|
Municipal | Municipal Government Within County |
Contact: VILLAGE MAYOR
104 E MAIN ST, MOUNT KISCO NY 10549-2304
|
|
GUS Population: 9,900 (2024)
ID: 170685
|
Municipal | Municipal Government Within County |
Contact: ASSISTANT TO ADMINISTRATOR
938 KING STREET, RYE BROOK NY 10573
|
|
GUS Population: 8,407 (2024)
ID: 193775
|
Municipal | Municipal Government Within County |
Contact: VILLAGE MANAGER
7 MAPLE AVE, STE 1, HASTINGS ON HUDSON NY 10706-1435
|
|
GUS Population: 8,232 (2024)
ID: 170676
|
Municipal | Municipal Government Within County |
Contact: VILLAGE MANAGER
1 VAN WYCK ST, CROTON ON HUDSON NY 10520-2525
|
|
GUS Population: 7,579 (2024)
ID: 212229
|
Municipal | Municipal Government Within County |
Contact: VILLAGE ADMINISTRATOR
195 SPARKS AVE, PELHAM NY 10803-1829
|
|
GUS Population: 7,440 (2024)
ID: 212226
|
Municipal | Municipal Government Within County |
Contact: VILLAGE MAYOR
1111 PLEASANTVILLE RD, BRIARCLIFF MANOR NY 10510-1603
|
|
GUS Population: 7,351 (2024)
ID: 109592
|
Municipal | Municipal Government Within County |
Contact: ADMINISTRATOR
80 WHEELER AVE, PLEASANTVILLE NY 10570-3077
|
|
GUS Population: 6,984 (2024)
ID: 170684
|
Municipal | Municipal Government Within County |
Contact: VILLAGE MAYOR
65 MAIN ST, STE 200, TUCKAHOE NY 10707-2944
|
|
GUS Population: 6,640 (2024)
ID: 204982
|
Municipal | Municipal Government Within County |
Contact: VILLAGE MAYOR
120 LARCHMONT AVE, STE 1, LARCHMONT NY 10538-3731
|
|
GUS Population: 6,502 (2024)
ID: 202207
|
Municipal | Municipal Government Within County |
Contact: VILLAGE ADMINISTRATOR
85 MAIN ST, IRVINGTON NY 10533-1720
|
|
GUS Population: 6,479 (2024)
ID: 204981
|
Municipal | Municipal Government Within County |
Contact: VILLAGE ADMINISTRATOR
200 PONDFIELD RD, BRONXVILLE NY 10708-4832
|
|
GUS Population: 5,613 (2024)
ID: 190979
|
Municipal | Municipal Government Within County |
Contact: DEPUTY CLERK
4 PENFIELD PL, PELHAM NY 10803-3298
|
|
GUS Population: 5,168 (2024)
ID: 131301
|
Municipal | Municipal Government Within County |
Contact: VILLAGE ADMINISTRATOR
15 S STONE AVE, ELMSFORD NY 10523-3612
|
|
GUS Population: 5,151 (2024)
ID: 109726
|
Township | Municipal Government Within County |
Contact: SUPERVISOR, TOWN OF NORTH SALEM
266 TITICUS RD, NORTH SALEM NY 10560-1708
|
|
GUS Population: 5,014 (2024)
ID: 202228
|
Township | Municipal Government Within County |
Contact: TOWN CLERK
179 WESTCHESTER AVE, POUND RIDGE NY 10576-1741
|
|
GUS Population: 4,974 (2024)
ID: 170675
|
Municipal | Municipal Government Within County |
Contact: VILLAGE MANAGER
507 ASHFORD AVE, ARDSLEY NY 10502-2124
|
|
GUS Population: 2,240 (2024)
ID: 202206
|
Municipal | Municipal Government Within County |
Contact: ADMINISTRATOR
236 TATE AVE, BUCHANAN NY 10511-1212
|