I-485 at Chicago Field Office
Form I-485, Application to Register Permanent Residence or Adjust Status, is filed with USCIS to apply for a Green Card.
Verified from USCIS on 2026-06-05
How I-485 compares to other forms at the Chicago Field Office
Chicago processes N-400 (naturalization) at 7.5 to 10.0 months, N-600 (certificate of citizenship) at 13.5 to 15.0 months, and N-600K (citizenship under section 322) at 27.0 to 52.0 months. N-400 is fastest end-to-end. N-600K reaches a 52-month ceiling, the highest at the office. I-485 sits at 10.5 to 25.0 months, a 14.5-month spread that is the second-widest of the four. Its ceiling sits 15 months above N-400's upper bound. The I-485 floor opens 0.5 months after N-400's upper bound.
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Frequently Asked Questions
How long does I-485 take at Chicago Field Office?
Current processing time for I-485 at Chicago Field Office is 11.5 months to 30.5 months, based on the latest data from USCIS.
When was I-485 processing time data last updated?
The data was last updated on 2026-06-05, sourced from USCIS.
What factors affect I-485 processing time?
Processing times vary based on application volume, case complexity, security checks, and the completeness of submitted documentation. Times shown are estimates and individual cases may differ.