N-400 Processing Time — Saint Louis MO (2026)
Updated July 15, 2026 · Source: USCIS official processing times
Most N-400 filings at Saint Louis MO are currently completing in 11 to 12.5 months.
USCIS's published range reflects how long it recently took to complete the majority of cases at this office (see USCIS methodology).
USCIS considers a Saint Louis MO N-400 outside normal processing time if it was filed on or before July 4, 2025 and is still pending.
What your case status likely means
- Inquiry eligible — filed on or before July 4, 2025 and still pending. Your case is outside USCIS's normal processing time. You can submit a service request (case inquiry), and we can help you decide whether a follow-up filing or litigation is warranted.
- Past the typical range — filed after July 4, 2025 but more than 12.5 months ago. Past USCIS's typical range for this office, but not yet eligible for a service request. Here's what to watch — talk to us if you're concerned.
- Approaching the top of the range — filed 11–12.5 months ago. Near the top of the typical range for this office. Not yet unusual, but worth monitoring.
- Within the typical range — filed less than 11 months ago. Within USCIS's typical processing window for this office.
Attorney context
Reviewed by Aaron Elinoff, Managing Partner, Novo Legal Group — CO Bar #46468, WA Bar #58949
Talk to a licensed attorney about your N-400 case
Whether your case is inquiry-eligible, past the typical range, or stuck for reasons that need intervention — a licensed attorney can help you decide what to do next.
Schedule a consultationCall (888) 746-5245 · Denver (303) 335-0250