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Processing times / N-400 /

USCIS · FORM N-400 · FIELD OFFICE HEL

N-400 at Helena MT

Application for Naturalization.

9.5–11.5 monthspublished processing time
3 of 90offices, ordered from shortest published time
November 10, 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, Helena MT), 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 Q183133withheld182
FY2024 Q38891withheld222
FY2024 Q4136152withheld202
FY2025 Q112811612204
FY2025 Q217213011240
FY2025 Q313394withheld275
FY2025 Q4148151withheld271
FY2026 Q2111102withheld311
FY2026 Q310921withheld399

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