N-600K at Chicago Field Office
N-600K is processed by USCIS.
Verified from USCIS on 2026-06-05
How N-600K compares to other forms at the Chicago Field Office
Chicago runs N-400 (naturalization), I-485 (adjustment of status), and N-600 (certificate of citizenship) in addition to N-600K. N-400 sits at 7.5 to 10.0 months, I-485 at 10.5 to 25.0, and N-600 at 13.5 to 15.0. The three siblings all cap below 26 months. N-600K spans 27.0 to 52.0 months, a 25-month gap and the slowest opening, highest ceiling, widest spread at the office. The N-600K lower bound is the office's latest opening at 27 months.
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Frequently Asked Questions
How long does N-600K take at Chicago Field Office?
Current processing time for N-600K at Chicago Field Office is 27 months to 37.5 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.