N-600K at Seattle Field Office
N-600K is processed by USCIS.
Verified from USCIS on 2026-06-05
How N-600K compares to other forms at the Seattle Field Office
Seattle runs N-400 (naturalization), I-485 (adjustment of status), and N-600 (certificate of citizenship) alongside N-600K. N-400 sits at 7.5 to 9.0 months and I-485 spans 15.5 to 49.5 months. N-600 runs 25.5 to 26.0 months. N-600K spans 20.5 to 25.5 months, a 5-month band in the upper tier of the office. The N-600K band runs 4.5 months wider than N-600's tighter range. At 20.5 months, the N-600K floor sits within the office's spread of openings.
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Frequently Asked Questions
How long does N-600K take at Seattle Field Office?
Current processing time for N-600K at Seattle Field Office is 19.5 months to 25.5 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.