Find your field office
Enter your home zip code — not a P.O. box or your attorney's address. USCIS assigns your office based on where you actually live.
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We send you directly to the official USCIS locator with your zip pre-filled. We do not store or transmit your zip code.
Opening USCIS office locator for zip code — the official USCIS tool will open in a new tab:
USCIS Field Office Locator
Find the field office where your naturalization interview will take place
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Application Support Center (ASC) Locator
Find where your biometrics appointment (fingerprints & photo) will take place
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Check Your Case Status
Enter your receipt number to see where your application is in the process
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The two types of offices you will visit
Field Office
This is where your naturalization interview happens. An officer will review your N-400, test your English, and ask you civics questions. This is the final step before your oath ceremony.
Naturalization interview
Oath ceremony
Application Support Center (ASC)
This is where your biometrics appointment happens — fingerprints, photograph, and electronic signature. You visit early in the process, before your interview is scheduled.
Fingerprints
Photo
Important: Neither office accepts walk-ins. You must have an appointment notice before visiting. Your ASC appointment and your Field Office interview will be scheduled separately by USCIS — they are often at different locations.
What to bring to your interview
Your interview appointment notice (Form I-797)
The letter USCIS mailed you. Do not go without this — it has the exact address, date, and time.
Your Permanent Resident Card (Green Card)
Your current green card. Bring the original — not a copy.
A valid passport or national ID
From your country of birth. Foreign passports are accepted even if expired.
Your completed N-400 and all supporting documents
Tax returns (3–5 years), travel records, marriage/divorce certificates if applicable, any court records.
Proof of continuous residence
Lease agreements, utility bills, bank statements showing your US address history.
Selective Service registration proof (if applicable)
Male applicants who were ages 18–26 after 1980 must show proof of registration or exemption.
⚠️ Federal law prohibits these items at any USCIS facility
- Firearms — even with a valid permit
- Knives, pepper spray, or ammunition of any kind
- Camera equipment — photography is prohibited inside USCIS buildings
- Recording devices — audio and video recording are not permitted
Tips for your interview day
1
Arrive 15–20 minutes early
USCIS buildings have security screening similar to an airport. Budget extra time for the line, metal detectors, and finding the right floor and waiting area.
2
Dress professionally
You do not need to wear a suit, but dress as you would for a job interview. First impressions matter and a neat appearance shows respect for the process.
3
Answer only what is asked — clearly and briefly
Do not volunteer extra information. If you do not understand a question, it is fine to say "Could you repeat that?" or "I'm sorry, I don't understand." Officers expect nerves.
4
Know the current officeholder names
The officer will ask who the President, Vice President, and your state's senators and governor are. Verify the current names at uscis.gov/citizenship/testupdates the day before your interview.
5
If you do not pass, you get one more chance
If you fail the English or civics portion, USCIS will schedule a second appointment within 60–90 days. You do not have to start the entire process over — just the portion you did not pass.
6
Bring a translator only if truly necessary
If you qualify for a language accommodation (65/20 exception or medical waiver), USCIS will arrange an interpreter. Bringing your own may raise questions about your English ability if you are filing under the standard track.
Ready for your interview?
Keep studying and take a practice test to see where you stand.