N-400 at Louisville Field Office
Form N-400, Application for Naturalization, is filed with USCIS to apply for US citizenship.
Verified from USCIS on 2026-06-05
How N-400 compares to other forms at the Louisville Field Office
Louisville processes N-600 (certificate of citizenship), N-600K (citizenship under section 322), and I-485 (adjustment of status) in addition to N-400. N-600 spans 5.0 to 8.5 months, N-600K spans 7.0 to 11.0, and I-485 spans 11.5 to 21.5. I-485 has the widest range. N-400 sits at 7.5 to 10.0 months, a tight 2.5-month band, the narrowest range at the office. The N-400 ceiling lands 11.5 months below the office's overall maximum. The N-400 floor opens 2.5 months above the office's quickest form.
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Frequently Asked Questions
How long does N-400 take at Louisville Field Office?
Current processing time for N-400 at Louisville Field Office is 8.5 months to 10.5 months, based on the latest data from USCIS.
When was N-400 processing time data last updated?
The data was last updated on 2026-06-05, sourced from USCIS.
What factors affect N-400 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.