N-600K at Portland Field Office
N-600K is processed by USCIS.
Verified from USCIS on 2026-06-05
How N-600K compares to other forms at the Portland (Oregon) Field Office
At Portland (Oregon), three other forms accompany N-600K: N-600 (certificate of citizenship) at 5.5 to 8.5 months, I-485 (adjustment of status) at 9.0 to 16.0 months, and N-400 (naturalization) at 9.5 to 11.0 months. N-600 has the fastest opening. I-485 has the widest range. N-600K runs 12.0 to 12.5 months, a half-month band that is the tightest at the office. The N-600K ceiling lands 3.5 months below the office's overall maximum. The N-600K floor opens 6.5 months above the office's quickest form.
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Frequently Asked Questions
How long does N-600K take at Portland Field Office?
Current processing time for N-600K at Portland Field Office is 23 months to 23.5 months, based on the latest data from USCIS.
When was N-600K processing time data last updated?
The data was last updated on 2026-06-05, sourced from USCIS.
What factors affect N-600K 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.