N-400 at Brooklyn Field Office
Form N-400, Application for Naturalization, is filed with USCIS to apply for US citizenship.
Verified from USCIS on 2026-06-05
How N-400 compares to other forms at the Brooklyn Field Office
Three other forms share the Brooklyn docket: N-600 (certificate of citizenship) at 5.0 to 7.0 months, N-600K (citizenship under section 322) at 11.0 to 37.0 months, and I-485 (adjustment of status) at 14.5 to 36.0 months. N-600 is the fastest by a wide margin. N-600K and I-485 each post spreads above 20 months. N-400 sits at 9.5 to 12.0 months, the second-fastest of the four. That ceiling sits 25 months below N-600K's upper bound. The lower bound opens 1.5 months before N-600K's floor.
Get notified when N-400 processing time changes
Free alerts. No spam. Unsubscribe anytime.
Calculator
When will your N-400 at Brooklyn Field Office likely be processed?
Enter your date and get a predicted window based on current processing times.
Frequently Asked Questions
How long does N-400 take at Brooklyn Field Office?
Current processing time for N-400 at Brooklyn Field Office is 9.5 months to 11.5 months, based on the latest data from USCIS.
When was N-400 processing time data last updated?
The data was last updated on 2026-06-05, sourced from USCIS.
What factors affect N-400 processing time?
Processing times vary based on application volume, case complexity, security checks, and the completeness of submitted documentation. Times shown are estimates and individual cases may differ.