N-400 Processing Time — By Office (2026)

Processing time by office

Click a column to sort. Offices flagged with the visa-bulletin / preference-category caveat show context rather than a bare number.

What a delay on N-400 actually means

Reviewed by Aaron Elinoff, Managing Partner, Novo Legal Group — CO Bar #46468, WA Bar #58949

What USCIS's published range actually means

The number USCIS publishes for N-400 is not a promise, an average, or a target. It is a lookback. USCIS reports the time it recently took to complete the large majority of adjudicated cases (as of USCIS's most recent methodology, roughly 80%) at that field office over a trailing window (see USCIS's own methodology explainer at https://egov.uscis.gov/processing-times/more-info). Read carefully, that means the remainder took longer — sometimes materially longer, and an individual case can sit inside or outside that range for reasons that have nothing to do with the "typical" applicant. When you see a range like "X to Y months" on your field office's row, treat it as USCIS's own description of recent history at that office, not a schedule your case is on.

The service-request date is a separate signal — and the one that matters

Alongside the range, USCIS publishes a service-request date for each form and office. This is the date that determines whether a still-pending case is considered outside USCIS's normal processing time. It is a distinct concept from the range, and confusing the two is one of the most common mistakes we see.

Two states people often mix up:

• Past the typical range, but filed after the service-request date. The case is past the top of the published range, but was filed too recently to submit a case inquiry. An applicant in this posture is not yet eligible to submit a case inquiry. Watchful posture is typical — monitoring the online case status, responding promptly to any RFE, and talking to counsel if the delay is starting to affect a job, travel, or a downstream benefit. This is generally not the moment to escalate; it is the moment to prepare.
• Filed on or before the service-request date and still pending — "inquiry-eligible." This is the state USCIS itself treats as outside normal processing time. You can submit a case inquiry (a service request) through your USCIS account, and if that goes nowhere, other tools open up. This is where the conversation with a lawyer earns its keep.

The order matters: the inquiry-eligibility check runs off the service-request date first, independently of where a case sits in the range. A case filed well before the service-request date and still pending is inquiry-eligible even when nothing about the file appears unusual.

When mandamus is worth discussing — and when it isn't

Mandamus is a federal-court action under 28 U.S.C. § 1361 that asks a judge to compel USCIS to make a decision on a case that has been unreasonably delayed. Two things are worth being blunt about. First, it is not a shortcut for a case that is a few months late. Courts look for unreasonable delay — cases genuinely stuck well past the outer edge of normal processing, usually after a case inquiry has already failed to move the file. Second, mandamus forces a decision; it does not order an approval. In the right case it is a meaningful tool, and this firm has litigated it. In the wrong case it burns money and goodwill.

The conversation we have with clients is a diagnostic one: how long past the range, what the file history looks like, whether inquiries have already been tried, whether the underlying case has red flags that make an unreasonable-delay claim harder to make. If the answer is yes, we say so. If it is no, we say that too.

N-400 is a field-office answer, not a national one

N-400 is processed at USCIS field offices, not at a service center. That means "how long does N-400 take" is the wrong question. The right question is "how long is N-400 taking at *my* field office." Denver, Kent, Seattle, and every other field office run their own interview scheduling, their own officer capacity, and their own local backlog. Two applicants who file the same case on the same day at different offices routinely see different outcomes on timing. When national headlines quote a single N-400 number, they are averaging over dramatically different local realities. The table on this page renders the number for your office directly from USCIS's latest publication, which is the only number that maps to your case.

Why this practice can speak to it

Novo Legal Group is a bilingual, Colorado-and-Washington immigration practice. Aaron Elinoff is admitted in both states (CO Bar #46468, admitted 2013; WA Bar #58949, admitted 2022), and the firm actively practices at both the Denver and Kent field offices — the two anchors of our N-400 work — with additional Washington coverage in the Seattle, Tri-Cities, Yakima, and Spokane areas, and additional Colorado metros beyond Denver. Local practice is why we can tell you what a stalled Denver interview queue usually looks like versus a Kent one, and why our take on your case is not a rewrite of USCIS's own page.

FAQ — N-400 processing time