USCIS Application Support Center — Port Chester, NY

The Application Support Center - Port Chester, NY is a USCIS Application Support Center (ASC) at USCIS Application Support Center, 40 South Main Street, Port Chester, NY 10573. ASCs are the offices where USCIS takes biometrics (fingerprints, photographs and signatures) for applications that require them. In USCIS’s field-office-by-ZIP file dated August 28, 2026, 207 ZIP codes (129 in 3 counties, plus 78 the file lists without a county) (CT, NY) are assigned to this ASC.

General information, not legal advice. For your specific case, talk to an immigration attorney or an accredited representative.

Quick reference

As listed on the USCIS office page (checked October 15, 2026)
AddressUSCIS Application Support Center, 40 South Main Street, Port Chester, NY 10573
HoursMonday to Friday, 8:00 a.m. - 4:00 p.m.; closed Saturday and Sunday
Military personnelThis office provides services to military personnel from 9:00AM to 3:00PM, Monday through Friday. Military personnel do not need an appointment.
Parking and accessibilityMunicipal Parking is next to the Stop and Shop, across from the Application Support Center, there is also metered parking on the street. ACCESSIBILITY: This office is accessible to people with disabilities.
Public transportationThe New Heaven Train goes to the Port Chester station. The cross street is Westchester Avenue to South Main Street. The “Landmark” in this area is the Bed Bath and Beyond. Make right on to South Main Street. The Stop and Shop supermarket is across from Application Support Center.
USCIS pageApplication Support Center - Port Chester, NY

Getting there: USCIS driving directions

The ASC’s USCIS page gives these driving directions (quoted as published):

Traveling toward the North: Take Interstate 95 North. Continue to follow Interstate 95 North (partial toll road). Take Exit 21 for Interstate 287 West, toward US-1 North. Keep right at the fork to continue toward Boston Post Road/US-1 North. Merge onto Boston Post Road/US-1 North. Turn left at South Main Street/US-1 North. The Application Support Center is on the left. Traveling toward the South from Connecticut: Take Interstate 95 South toward New York City. Take Exit 2 toward Delavan Avenue/Byram. Take a slight right onto Delavan Avenue. Delavan Avenue becomes Mill Street. Turn left onto North Main Street/US-1. The Application Support Center is on the right. Traveling toward the East: Take Interstate 287 East. Take Exit 11 for US-1 toward Port Chester. Take a sharp left onto Boston Post Road/US-1. Turn left onto South Main Street/US-1. The Application Support Center is on the left. Traveling toward the West: Take Interstate 495 West (Long Island Expressway) toward New York. Take Exit 31 for the Cross Island Parkway North toward Whitestone Bridge. Merge onto Cross Island Parkway North. Take Exit 33 and merge onto Interstate 295 North toward Bronx and New England (a partial toll road). Take Exit 10 and merge onto Interstate 695 North (Throgs Neck Expressway) toward New Have and Interstate 95 North. Interstate 695 North (Throgs Neck Expressway) will become Interstate 95 North. Take Exit 9 for the Hutchinson River Parkway North. Take the left exit and merge onto Hutchinson River Parkway North. Take Exit 6 and merge onto Interstate 95 North (New England Trailway) toward New Haven (a partial toll road). Take Exit 21 for US-1 North toward Port Chester. Take a slight right onto Boston Post Road/US-1. Turn left onto South Main Street/US-1. The Application Support Center is on the left.

ZIP codes and counties USCIS assigns to this ASC

USCIS’s field-office-by-ZIP file (dated August 28, 2026) names an ASC for every ZIP code. These are the counties with ZIP codes assigned to the Port Chester ASC, with up to four of their cities (most ZIP codes first, then alphabetical). USCIS assigns ZIP codes, not whole counties, so a county can be split between ASCs.

CountyStateZIP codesCities
WestchesterNY81White Plains, Yonkers, Mount Vernon, New Rochelle, …
DutchessNY39Poughkeepsie, Amenia, Annandale on Hudson, Bangall, …
PutnamNY9Brewster, Carmel, Cold Spring, Garrison, …
(no county in the file)CT78Stamford, Bridgeport, Norwalk, Westport, …

Every ZIP code assigned to the Port Chester ASC, by city

From the same USCIS file (Aug 28, 2026), retired ZIP codes excluded:

  • Amawalk, NY: 10501
  • Amenia, NY: 12501
  • Annandale on Hudson, NY: 12504
  • Ardsley, NY: 10502
  • Ardsley on Hudson, NY: 10503
  • Armonk, NY: 10504
  • Baldwin Place, NY: 10505
  • Bangall, NY: 12506
  • Barrytown, NY: 12507
  • Beacon, NY: 12508
  • Bedford, NY: 10506
  • Bedford Hills, NY: 10507
  • Bethel, CT: 06801
  • Billings, NY: 12510
  • Botsford, CT: 06404
  • Brewster, NY: 10509
  • Briarcliff Manor, NY: 10510
  • Bridgeport, CT: 06601, 06602, 06604, 06605, 06606, 06607, 06608, 06610, 06673, 06699
  • Bronxville, NY: 10708
  • Brookfield, CT: 06804
  • Buchanan, NY: 10511
  • Carmel, NY: 10512
  • Castle Point, NY: 12511
  • Chappaqua, NY: 10514
  • Chelsea, NY: 12512
  • Clinton Corners, NY: 12514
  • Cold Spring, NY: 10516
  • Cortlandt Manor, NY: 10567
  • Cos Cob, CT: 06807
  • Crompond, NY: 10517
  • Cross River, NY: 10518
  • Croton Falls, NY: 10519
  • Croton on Hudson, NY: 10520, 10521
  • Danbury, CT: 06810, 06811, 06813
  • Darien, CT: 06820
  • Dobbs Ferry, NY: 10522
  • Dover Plains, NY: 12522
  • Eastchester, NY: 10709
  • Easton, CT: 06612
  • Elmsford, NY: 10523
  • Fairfield, CT: 06824, 06825, 06828
  • Fishkill, NY: 12524
  • Garrison, NY: 10524
  • Georgetown, CT: 06829
  • Glenham, NY: 12527
  • Goldens Bridge, NY: 10526
  • Granite Springs, NY: 10527
  • Greens Farms, CT: 06838
  • Greenwich, CT: 06830, 06831, 06836
  • Harrison, NY: 10528
  • Hartsdale, NY: 10530
  • Hastings on Hudson, NY: 10706
  • Hawleyville, CT: 06440
  • Hawthorne, NY: 10532
  • Holmes, NY: 12531
  • Hopewell Junction, NY: 12533
  • Hughsonville, NY: 12537
  • Hyde Park, NY: 12538
  • Irvington, NY: 10533
  • Jefferson Valley, NY: 10535
  • Katonah, NY: 10536
  • Lagrangeville, NY: 12540
  • Lake Peekskill, NY: 10537
  • Larchmont, NY: 10538
  • Lincolndale, NY: 10540
  • Mahopac, NY: 10541
  • Mahopac Falls, NY: 10542
  • Mamaroneck, NY: 10543
  • Maryknoll, NY: 10545
  • Milford, CT: 06461
  • Millbrook, NY: 12545
  • Millerton, NY: 12546
  • Millwood, NY: 10546
  • Mohegan Lake, NY: 10547
  • Monroe, CT: 06468
  • Montrose, NY: 10548
  • Mount Kisco, NY: 10549
  • Mount Vernon, NY: 10550, 10551, 10552, 10553
  • New Canaan, CT: 06840
  • New Fairfield, CT: 06812
  • New Rochelle, NY: 10801, 10802, 10804, 10805
  • Newtown, CT: 06470
  • North Salem, NY: 10560
  • Norwalk, CT: 06850, 06851, 06852, 06853, 06854, 06855, 06856, 06857, 06858, 06860
  • Old Greenwich, CT: 06870
  • Ossining, NY: 10562
  • Patterson, NY: 12563
  • Pawling, NY: 12564
  • Peekskill, NY: 10566
  • Pelham, NY: 10803
  • Pine Plains, NY: 12567
  • Pleasant Valley, NY: 12569
  • Pleasantville, NY: 10570
  • Port Chester, NY: 10573
  • Poughkeepsie, NY: 12601, 12602, 12603, 12604
  • Poughquag, NY: 12570
  • Pound Ridge, NY: 10576
  • Purchase, NY: 10577
  • Purdys, NY: 10578
  • Putnam Valley, NY: 10579
  • Red Hook, NY: 12571
  • Redding, CT: 06896
  • Redding Center, CT: 06875
  • Redding Ridge, CT: 06876
  • Rhinebeck, NY: 12572
  • Rhinecliff, NY: 12574
  • Ridgefield, CT: 06877, 06879
  • Riverside, CT: 06878
  • Rye, NY: 10580
  • Salt Point, NY: 12578
  • Sandy Hook, CT: 06482
  • Scarsdale, NY: 10583
  • Shelton, CT: 06484
  • Shenorock, NY: 10587
  • Sherman, CT: 06784
  • Shrub Oak, NY: 10588
  • Somers, NY: 10589
  • South Salem, NY: 10590
  • Southport, CT: 06890
  • Staatsburg, NY: 12580
  • Stamford, CT: 06901, 06902, 06903, 06904, 06905, 06906, 06907, 06910, 06911, 06912, 06913, 06914, 06926, 06927
  • Stanfordville, NY: 12581
  • Stevenson, CT: 06491
  • Stormville, NY: 12582
  • Stratford, CT: 06614, 06615
  • Tarrytown, NY: 10591
  • Thornwood, NY: 10594
  • Tivoli, NY: 12583
  • Trumbull, CT: 06611
  • Tuckahoe, NY: 10707
  • Valhalla, NY: 10595
  • Verbank, NY: 12585
  • Verplanck, NY: 10596
  • Waccabuc, NY: 10597
  • Wappingers Falls, NY: 12590
  • Wassaic, NY: 12592
  • West Harrison, NY: 10604
  • Weston, CT: 06883
  • Westport, CT: 06880, 06881, 06888, 06889
  • White Plains, NY: 10601, 10602, 10603, 10605, 10606, 10607, 10610
  • Wilton, CT: 06897
  • Wingdale, NY: 12594
  • Yonkers, NY: 10701, 10702, 10703, 10704, 10705, 10710
  • Yorktown Heights, NY: 10598

Field offices whose ZIP codes route here (from the same file):

Before your appointment: what USCIS says

  • Go only with a notice. The ASC’s USCIS page says applicants need to appear at the assigned ASC on the appointment notice.
  • What to bring. USCIS’s biometrics page lists your ASC appointment notice (Form I-797C), every notice if you received several, and valid photo identification (such as a Green Card, passport or driver’s license).
  • Rescheduling. USCIS’s biometrics page says the request must be made through your USCIS online account (not by mail), before the original appointment, with good cause, and at least 12 hours before the appointment time; to use a different ASC you must reschedule in advance and select it. If the request is less than 12 hours from the appointment or you missed it, the page says to call the USCIS Contact Center at 800-375-5283 (TTY 800-767-1833).
  • Closures. If the ASC closes for weather or a facility issue, USCIS says it reschedules the appointment automatically; it asks you to check its Office Closings page before traveling.
  • No weapons. USCIS says federal law prohibits weapons such as firearms, knives, pepper spray and ammunition at any USCIS facility.

Last verified: 2026-10-15. General procedural information for educational purposes, not legal advice; for your specific case, consult an immigration attorney or accredited representative. Office data comes from official USCIS pages and files and can change. Your appointment notice is what counts.