N-400 at Philadelphia 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 Philadelphia Field Office
Three other forms share the Philadelphia docket: N-600 (certificate of citizenship) at 6.0 to 8.5 months, I-485 (adjustment of status) at 11.0 to 18.0 months, and N-600K (citizenship under section 322) at 14.0 to 28.5 months. N-600 is fastest. N-600K has the widest range. N-400 clears in 8.0 to 10.5 months, the second-fastest of the four forms and a 2.5-month band. On lower bounds across the office, N-400 ranks 2nd of 4. On upper bounds, N-400 sits 2nd of 4 forms here.
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Frequently Asked Questions
How long does N-400 take at Philadelphia Field Office?
Current processing time for N-400 at Philadelphia Field Office is 8.5 months to 11 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.