The USCIS field office in Chicago, IL — 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 CHI).
At the end of Apr–Jun 2026, 23,623 citizenship applications were pending at Chicago. The office completed about 1,839 a month over the past year, so the queue would take about 13 months at that pace — faster than the national 16 months.
N-400 (citizenship)
13 mo
23,623 pending · 1,839/mo done · #31 of 88
I-485 (green card)
16 mo
27,863 pending · 1,754/mo done · #18 of 92
I-130 (family petition)
54 mo
68,801 pending · 1,266/mo done · #20 of 94
Pending cases at Chicago
Cases awaiting a decision at the end of each fiscal quarter.
How long does N-400 take at the Chicago field office?
USCIS does not publish a median per office in its quarterly data, but it does publish the queue: 23,623 N-400s were pending at Chicago at the end of Apr–Jun 2026, and the office completed about 1,839 a month over the last year. At that pace the queue takes about 13 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 Chicago?
27,863 I-485 applications were pending at the end of Apr–Jun 2026; the office completed about 1,754 a month (backlog estimate 16 months, national 30 months).
Which areas does the Chicago 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.