N-600K at Long Island Field Office
N-600K is processed by USCIS.
Verified from USCIS on 2026-06-05
How N-600K compares to other forms at the Long Island Field Office
Three other forms move through Long Island: N-400 (naturalization) at 8.5 to 11.5 months, N-600 (certificate of citizenship) at 9.0 to 10.0 months, and I-485 (adjustment of status) at 14.0 to 29.0 months. N-600 holds the tightest 1-month band. I-485 has the widest range. N-600K sits at 19.5 to 23.0 months, a 3.5-month band that is the second-tightest range at the office. The widest sibling spread of 15 months is more than double the N-600K range.
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Frequently Asked Questions
How long does N-600K take at Long Island Field Office?
Current processing time for N-600K at Long Island Field Office is 17 months to 20.5 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.