N-400 at Harlingen 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 Harlingen Field Office
Three other forms share the Harlingen docket: N-600 (certificate of citizenship) at 6.5 to 19.0 months, I-485 (adjustment of status) at 9.0 to 22.0 months, and N-600K (citizenship under section 322) at 14.0 to 14.5 months. I-485 has the widest spread. N-600K holds a half-month band. N-400 clears in 8.0 to 11.5 months, a 3.5-month band that is the second-tightest at the office. The N-400 floor opens 1.5 months above the office's quickest form. Its range overlaps I-485's by 2.5 months in the middle.
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Frequently Asked Questions
How long does N-400 take at Harlingen Field Office?
Current processing time for N-400 at Harlingen Field Office is 8.5 months to 12.5 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.