N-600K at Oklahoma City Field Office
N-600K is processed by USCIS.
Verified from USCIS on 2026-06-05
How N-600K compares to other forms at the Oklahoma City Field Office
At Oklahoma City, three other forms run at much shorter ranges: N-400 (naturalization) at 10.5 to 14.5 months, N-600 (certificate of citizenship) at 11.0 to 14.0 months, and I-485 (adjustment of status) at 11.5 to 25.0 months. The three siblings cap at 25 months. N-600K runs 48.5 to 49.0 months, a half-month band sitting more than 23 months above the next-slowest form. On upper bounds, N-600K sits 4th of 4 forms here. That ceiling is the highest the office posts across all 4 forms.
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Frequently Asked Questions
How long does N-600K take at Oklahoma City Field Office?
Current processing time for N-600K at Oklahoma City Field Office is 48.5 months to 49 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.