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Processing times / N-400 /

USCIS · FORM N-400 · FIELD OFFICE SBD

N-400 at San Bernardino CA

Application for Naturalization.

13–17.5 monthspublished processing time
66 of 90offices, ordered from shortest published time
May 17, 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, San Bernardino CA), 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 Q13,0632,6872726,423
FY2024 Q34,0413,8264096,772
FY2024 Q44,4933,4663347,518
FY2025 Q14,0583,4323107,854
FY2025 Q24,7664,6284387,518
FY2025 Q34,1773,7374417,577
FY2025 Q44,2743,2933968,209
FY2026 Q22,1431,34738511,029
FY2026 Q32,05168018712,397

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