N-600K at Portland ME
Application for Citizenship and Issuance of Certificate Under Section 322
From USCIS data captured August 31, 2026
Application for Citizenship and Issuance of Certificate Under Section 322
18.5 – 19 months
Case inquiry possible for receipt dates on or before February 17, 2025.
In plain English
- The months range means: USCIS finished 80% of its recent N-600K cases at this office within that time. It's a reference point — some cases finish sooner, some later.
- "Case inquiry possible…" means: if USCIS received your case on or before that date, your wait is already longer than normal and you can officially ask USCIS about it (it's called an e-Request, and it's free).
- The chart below shows how the posted wait has moved over time — orange = our weekly captures; gray = archival history.
Track this N-600K wait at Portland ME
We'll email you only when this USCIS time changes, with the old value, new value, and trend.
Trend
Latest published wait
19 months
As of Aug 31, 2026 · Arrive Legal capture
Stable
No change since Aug 24, 2026
View 66 exact readings
- Aug 31, 2026 · Arrive Legal capture19 months
- Aug 24, 2026 · Arrive Legal capture19 months
- Aug 18, 2026 · Arrive Legal capture19 months
- Aug 13, 2026 · Arrive Legal capture19 months
- Jul 22, 2026 · Arrive Legal capture19 months
- Jun 24, 2026 · archival history19 months
- May 23, 2026 · archival history21 months
- Apr 22, 2026 · archival history20.5 months
- Mar 17, 2026 · archival history20.5 months
- Feb 19, 2026 · archival history27.5 months
- Jan 15, 2026 · archival history27.5 months
- Dec 19, 2025 · archival history28 months
- Dec 9, 2025 · archival history28 months
- Oct 22, 2025 · archival history28 months
- Sep 30, 2025 · archival history7.5 months
- Sep 19, 2025 · archival history7.5 months
- Sep 6, 2025 · archival history7.5 months
- Jul 31, 2025 · archival history12.5 months
- Jun 17, 2025 · archival history12.5 months
- May 20, 2025 · archival history12.5 months
- Apr 22, 2025 · archival history12.5 months
- Mar 18, 2025 · archival history12.5 months
- Mar 4, 2025 · archival history12.5 months
- Jan 30, 2025 · archival history6.5 months
- Dec 21, 2024 · archival history6.5 months
- Nov 26, 2024 · archival history10.5 months
- Nov 23, 2024 · archival history10.5 months
- Oct 19, 2024 · archival history10.5 months
- Oct 1, 2024 · archival history10.5 months
- Aug 22, 2024 · archival history10.5 months
- Aug 20, 2024 · archival history10.5 months
- Aug 8, 2024 · archival history10.5 months
- Jun 26, 2024 · archival history10.5 months
- Jun 4, 2024 · archival history30.5 months
- Apr 30, 2024 · archival history30.5 months
- Apr 9, 2024 · archival history30.5 months
- Apr 3, 2024 · archival history30.5 months
- Mar 30, 2024 · archival history30.5 months
- Mar 1, 2024 · archival history30.5 months
- Jan 23, 2024 · archival history19 months
- Jan 3, 2024 · archival history19 months
- Dec 28, 2023 · archival history18 months
- Dec 13, 2023 · archival history18 months
- Dec 2, 2023 · archival history18 months
- Nov 14, 2023 · archival history18 months
- Nov 2, 2023 · archival history18 months
- Sep 30, 2023 · archival history18 months
- Aug 24, 2023 · archival history18 months
- Jul 14, 2023 · archival history16 months
- Jun 21, 2023 · archival history16 months
- Jun 10, 2023 · archival history16 months
- May 5, 2023 · archival history16 months
- Mar 24, 2023 · archival history13 months
- Feb 7, 2023 · archival history29.5 months
- Dec 2, 2022 · archival history29.5 months
- Dec 1, 2022 · archival history29.5 months
- Nov 3, 2022 · archival history29.5 months
- Sep 28, 2022 · archival history29.5 months
- Sep 27, 2022 · archival history29.5 months
- Jul 15, 2022 · archival history10 months
- Jun 7, 2022 · archival history10 months
- May 27, 2022 · archival history10 months
- May 11, 2022 · archival history13.5 months
- May 6, 2022 · archival history13.5 months
- Mar 30, 2022 · archival history10 months
- Mar 21, 2022 · archival history10 months
Is your case delayed?
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Related forms
Other USCIS forms commonly tracked in the same process — listed for reference, not as guidance on what to file.
Frequently asked questions
How long does N-600K take at Portland ME?
Per USCIS data captured August 31, 2026, N-600K at Portland ME takes 18.5 – 19 months (80% of cases complete within that time).
When can I ask USCIS about my case?
Under the current data, USCIS accepts a N-600K case inquiry at Portland ME if your receipt date is on or before February 17, 2025. Use USCIS's e-Request tool.
Is this time a guarantee?
No. It is the time within which USCIS completed 80% of similar cases over the past six months. Every case is different; some take longer.
Check your case status at USCIS Case Status Online · Official source: USCIS Case Processing Times