USCIS marks this question with an asterisk: applicants who are 65 or older and have been permanent residents for 20 or more years may study just the marked questions.
What is the capital of the United States?
Accepted answers
Accepted answer
- Washington, D.C.
Explanation
The capital of the United States is Washington, D.C.
The explanation is our own study note, not official wording.
Source: USCIS, 2008 version (USCIS Office of Citizenship, rev. 08/21)Verified Sep 14, 2026Official PDF
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Question and answer wording is reproduced from the official USCIS study materials. US Citizenship Prep is an independent educational practice tool. It is not affiliated with, endorsed by, or operated by U.S. Citizenship and Immigration Services or any other government agency. Practice results do not guarantee an outcome in an official naturalization interview.