USCIS St. Louis (MO) Field Office processing times
The USCIS field office in St. Louis, MO — pending cases, completions and backlog for N-400 (citizenship), I-485 (green card), I-130 (family petition), from USCIS's quarterly office reports (office code STL).
At the end of Apr–Jun 2026, 3,318 citizenship applications were pending at St. Louis. The office completed about 357 a month over the past year, so the queue would take about 9 months at that pace — faster than the national 16 months.
N-400 (citizenship)
9 mo
3,318 pending · 357/mo done · #7 of 88
I-485 (green card)
23 mo
6,290 pending · 270/mo done · #40 of 92
I-130 (family petition)
69 mo
10,716 pending · 155/mo done · #39 of 94
Pending cases at St. Louis
Cases awaiting a decision at the end of each fiscal quarter.
How long does N-400 take at the St. Louis field office?
USCIS does not publish a median per office in its quarterly data, but it does publish the queue: 3,318 N-400s were pending at St. Louis at the end of Apr–Jun 2026, and the office completed about 357 a month over the last year. At that pace the queue takes about 9 months to clear (national: 16 months). For the official 80th-percentile time for this office, use the USCIS processing times tool.
How many green card applications are pending at St. Louis?
6,290 I-485 applications were pending at the end of Apr–Jun 2026; the office completed about 270 a month (backlog estimate 23 months, national 30 months).
Which areas does the St. Louis office serve?
USCIS assigns cases by your home ZIP code. Check the official field office locator to confirm which office handles your address.
Figures are copied from the official files without changes; derived numbers (changes, backlog estimates) are explained on the methodology page. Not legal advice.