U.S. Naturalization Civics Test Guides

Your test version depends on your N-400 filing date. See the differences side by side and study the right list.

How the naturalization civics test works: format, scoring, topics, retests, and the English test.

Two official lists are in use. Find your version by N-400 filing date and open the right list.

The full official 100-question list for the 2008 test, with answers and study explanations.

The full official 128-question list for the 2025 test, with answers and study explanations.

What to learn and in what order: version-aware study paths for the 100- and 128-question lists.

The biggest test topic taught by idea: principles, the system of government, and rights, for both versions.

The testable history facts only: colonial period, the 1800s, and recent history, for both versions.

The shortest test topic and the easiest points: geography, symbols, and holidays, for both versions.

Reading, writing, and speaking: what each part requires, the official vocabulary lists, and what did not change in 2025.

The complete official reading vocabulary, practice questions built from list words, and the real scoring rules.

The complete official writing vocabulary, dictation practice sentences, and the real scoring rules.

The interview day stage by stage: check-in, the N-400 review under oath, the tests, and the three outcomes.

What officers typically ask about your application, background, and allegiance, and how it differs from the civics list.

Take 20 real 2025 USCIS civics questions free. Instant score and explanations, no account required.

Create an account to practice sections, exam-style sessions, flashcards, and missed questions.

One-time access for the amount of study time you need before your USCIS interview.

Quick answers about USCIS test formats, passing scores, retests, and platform access.