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Processing times / N-400 /

USCIS · FORM N-400 · FIELD OFFICE HLG

N-400 at Harlingen TX

Application for Naturalization.

11.5–16 monthspublished processing time
43 of 90offices, ordered from shortest published time
June 26, 2025receipt date for a case inquiry
How USCIS describes these numbers: “We generally process cases in the order we receive them. This processing time is based on how long it took us to complete 80% of adjudicated cases over the past six months. Each case is unique, and some cases may take longer than others. Processing times should be used as a reference point, not an absolute measure of how long your case will take to be completed.”

Source: USCIS, Check Case Processing Times (N-400, Application for Naturalization, Harlingen TX), published September 17, 2026; data from March 2026 to August 2026. Recorded weekly by greencardline since October 17, 2026. What these numbers mean.

USCIS quarterly counts for this office

QuarterReceivedApprovedDeniedPending at end of quarter
FY2024 Q1724752521,316
FY2024 Q31,109831501,957
FY2024 Q41,190725722,357
FY2025 Q11,1421,036302,441
FY2025 Q21,304838722,790
FY2025 Q31,2541,436622,559
FY2025 Q41,3411,581822,225
FY2026 Q2670214552,971
FY2026 Q3542150643,359

Source: USCIS performance data for Form N-400 by field office (each quarter links to its file on uscis.gov). Totals across all categories of N-400 at this office. "Withheld" means USCIS suppressed a small number.

All 90 offices for N-400