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Processing times / N-400 /

USCIS · FORM N-400 · FIELD OFFICE PHI

N-400 at Philadelphia PA

Application for Naturalization.

11.5–15 monthspublished processing time
36 of 90offices, ordered from shortest published time
July 27, 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, Philadelphia PA), 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 Q15,5504,7158109,933
FY2024 Q36,3825,97654811,973
FY2024 Q47,4635,33368013,462
FY2025 Q16,4405,87866813,384
FY2025 Q26,9485,71479713,736
FY2025 Q36,4476,57966913,196
FY2025 Q46,3046,00962212,912
FY2026 Q23,9251,66045515,477
FY2026 Q33,6951,19029117,912

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