USCIS Application Support Center El Monte, CA: address, hours, ZIP codes

USCIS Application Support Center — El Monte, CA

The Application Support Center - El Monte, CA is a USCIS Application Support Center (ASC) at USCIS Application Support Center, 17843 Colima Road, City of Industry, CA 91748. 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, 107 ZIP codes in 1 county (CA) 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

Getting there: USCIS driving directions

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

TRAVELING NORTHEAST Head Northwest on Washington Boulevard toward Rosemead Boulevard Turn right onto Rosemead Boulevard Turn right onto Whittier Boulevard (Pass by Taco Bell (on the right) Continue straight, stay in the right lane. Take the ramp onto I-605 going North Merge onto I-605 North Use the right 3 lanes to take Exit 19 to merge onto CA-60/Pomona Freeway toward Pomona. Use the right 2 lanes to take Exit 18 for Azusa Avenue. Continue straight. 1Turn left onto Castleton Street. Continue onto Castleton Street. Turn right onto Walnut Hall Road Turn left onto Colima Road TRAVELING SOUTH Merge onto CA-60 East. Use the right 2 lanes to take Exit 18 for Azusa Avenue Continue Straight into Puente Hills Mall Slight left turn onto Castleton Street (Along the side of the mall) Continue straight on Castleton Street Turn right onto Walnut Hall Road Turn left onto Colima Road The Application Support Center (ASC) is on the left TRAVELING EAST Merge onto CA-60 East. Use the right 2 lanes to take Exit 18 for Azusa Avenue. Turn right onto South Azusa Avenue. Turn left onto Colima Road Application Support Center (ASC) is on the left. TRAVELING WEST Take CA-60 West Keep right at the fork to stay on CA-60 West Follow signs for Los Angeles Exit Fullerton Road Turn right onto Fullerton Road Turn left onto Gale Avenue. Turn left onto Stoner Creek (it turns into Castleton Street) Continue along Castleton Street Turn left onto Walnut Hall Road Turn left onto Colima Road. The Application Support Center (ASC) is on the right.

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 El Monte 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.

Every ZIP code assigned to the El Monte ASC, by city

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

• Alhambra, CA: 91801, 91802, 91803, 91804, 91896, 91899
• Altadena, CA: 91001, 91003
• Arcadia, CA: 91006, 91007, 91066, 91077
• Azusa, CA: 91702
• Baldwin Park, CA: 91706
• Bell, CA: 90202
• Bell Gardens, CA: 90201, 90205
• City of Industry, CA: 91714, 91715, 91716
• Covina, CA: 91722, 91723, 91724
• Downey, CA: 90240
• Duarte, CA: 91008, 91009, 91010
• El Monte, CA: 91731, 91732, 91734, 91735
• Hacienda Heights, CA: 91745
• La Canada Flintridge, CA: 91011, 91012
• La Puente, CA: 91744, 91746, 91747, 91749
• Los Angeles, CA: 90022, 90040, 90091, 90096
• Monrovia, CA: 91016, 91017
• Montebello, CA: 90640
• Monterey Park, CA: 91754, 91755, 91756
• Montrose, CA: 91020, 91021
• Mount Wilson, CA: 91023
• Pasadena, CA: 91101, 91102, 91103, 91104, 91105, 91106, 91107, 91109, 91110, 91114, 91115, 91116, 91117, 91121, 91123, 91124, 91125, 91126, 91129, 91182, 91184, 91185, 91188, 91189, 91199
• Pico Rivera, CA: 90660, 90661, 90662
• Rosemead, CA: 91770, 91771, 91772
• Rowland Heights, CA: 91748
• San Gabriel, CA: 91775, 91776, 91778
• San Marino, CA: 91108, 91118
• Sierra Madre, CA: 91024, 91025
• South El Monte, CA: 91733
• South Pasadena, CA: 91030, 91031
• Temple City, CA: 91780
• Walnut, CA: 91788, 91789
• West Covina, CA: 91790, 91791, 91792, 91793
• Whittier, CA: 90601, 90602, 90606, 90607, 90608, 90609, 90610

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

• USCIS Los Angeles County Field Office: 55 ZIP codes
• USCIS Los Angeles Field Office: 52 ZIP codes

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.

Related information

• USCIS Los Angeles County Field Office
• USCIS Los Angeles Field Office
• All USCIS offices serving California
• Change of address with USCIS

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.