N-400 at Seattle 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 Seattle Field Office
Seattle also handles I-485 (adjustment of status) at 15.5 to 49.5 months, N-600K (citizenship under section 322) at 20.5 to 25.5 months, and N-600 (certificate of citizenship) at 25.5 to 26.0 months. I-485 has a 34-month spread, the widest at the office. N-600 holds a half-month band. N-400 clears in 7.5 to 9.0 months, the fastest of the four forms on both ends and a 1.5-month band. Its upper bound falls 17 months below N-600's ceiling.
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Frequently Asked Questions
How long does N-400 take at Seattle Field Office?
Current processing time for N-400 at Seattle Field Office is 7.5 months to 9.5 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.