N-600K at Buffalo Field Office
N-600K is processed by USCIS.
Verified from USCIS on 2026-06-05
How N-600K compares to other forms at the Buffalo Field Office
At Buffalo, three other forms accompany N-600K: I-485 (adjustment of status) at 7.5 to 12.5 months, N-600 (certificate of citizenship) at 9.0 to 12.0 months, and N-400 (naturalization) at 11.0 to 12.0 months. I-485 carries the widest spread and N-400 the tightest band. N-600K runs 9.5 to 11.5 months, a 2-month band that sits just below the office's overall ceiling. The N-600K band runs 1 months wider than N-400's tighter range. From the N-600K floor to the office's overall ceiling stretches 3 months.
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Frequently Asked Questions
How long does N-600K take at Buffalo Field Office?
Current processing time for N-600K at Buffalo Field Office is 10.5 months to 12 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.