N-400 at Portland 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 Portland (Oregon) Field Office
Portland (Oregon) processes N-600 (certificate of citizenship), I-485 (adjustment of status), and N-600K (citizenship under section 322) in addition to N-400. N-600 sits at 5.5 to 8.5 months, I-485 at 9.0 to 16.0, and N-600K at 12.0 to 12.5. N-600K holds a half-month band. N-400 clears in 9.5 to 11.0 months, a tight 1.5-month band that is the second-narrowest at the office. The slowest sibling opens 2.5 months after the N-400 floor. On lower bounds across the office, N-400 ranks 3rd of 4.
Get notified when N-400 processing time changes
Free alerts. No spam. Unsubscribe anytime.
Calculator
When will your N-400 at Portland 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 Portland Field Office?
Current processing time for N-400 at Portland Field Office is 10 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.