Skip Navigation
United States Postal Service
Postmaster Finder 
Postal History 
Research Sources 

Postmaster Finder


Post Offices by County

WESTCHESTER COUNTY, NEW YORK

ZIP Code Post Office Date Established Date Discontinued
10501 AMAWALK
10502 ARDSLEY
10503 ARDSLEY ON HUDSON
10504 ARMONK 02/10/1851
10506 BEDFORD
10507 BEDFORD HILLS
10510 BRIARCLIFF MANOR
10511 BUCHANAN 10/21/1890
10514 CHAPPAQUA
10517 CROMPOND 02/28/1933
10518 CROSS RIVER
10519 CROTON FALLS 02/25/1833
10520 CROTON-ON-HUDSON
10522 DOBBS FERRY
10523 ELMSFORD
10526 GOLDENS BRIDGE
10527 GRANITE SPRINGS
10528 HARRISON 06/29/1871
10530 HARTSDALE
10532 HAWTHORNE 02/10/1851
10533 IRVINGTON
10535 JEFFERSON VALLEY
10536 KATONAH 07/14/1832
KENSICO 08/23/1849 07/31/1910
10537 LAKE PEEKSKILL 01/11/1933
10538 LARCHMONT
LEWISBORO 02/03/1842 05/30/1903
10540 LINCOLNDALE 08/19/1851
10543 MAMARONECK 09/23/1812
10545 MARYKNOLL 09/12/1921
10546 MILLWOOD 12/06/1881
10547 MOHEGAN LAKE
10548 MONTROSE
10549 MOUNT KISCO
10551 MOUNT VERNON 12/27/1851
10802 NEW ROCHELLE 11/30/1798
NORTH CASTLE 06/05/1809 04/30/1906
10560 NORTH SALEM 03/12/1819
10562 OSSINING 12/12/1797
10566 PEEKSKILL
10570 PLEASANTVILLE 08/07/1873
10573 PORT CHESTER
10576 POUND RIDGE
10577 PURCHASE 01/17/1827
10578 PURDYS 08/16/1849
10579 PUTNAM VALLEY
10580 RYE
10583 SCARSDALE 06/17/1850
10587 SHENOROCK
10588 SHRUB OAK 02/19/1829
10589 SOMERS 01/29/1811
10590 SOUTH SALEM
10591 TARRYTOWN
10594 THORNWOOD
10595 VALHALLA 01/05/1861
10596 VERPLANCK 02/01/1838
10597 WACCABUC
WEST CHESTER 05/27/1826 12/13/1895
10602 WHITE PLAINS 11/14/1797
10701 YONKERS 05/12/1796
10598 YORKTOWN HEIGHTS 09/27/1881

Return to Main Menu