How many U.S. senators are there?

Answer

One hundred (100)

Remember it: 50 states, 2 each.

Source: U.S. Citizenship and Immigration Services, 2025 civics test. Last reviewed September 5, 2026.

This is question 21 of 128 on the 2025 USCIS civics test, in the section System of government.

More from this section

This is the largest section, 47 questions, and the one most people find hardest. It covers Congress, the presidency, the courts, and what the federal and state governments each control. Expect several questions from here at your interview; the numbers (100 senators, 435 representatives, 9 justices, 27 amendments, terms of 2, 4, and 6 years) are worth drilling until they are automatic.

What part of the federal government writes laws?#18 What are the two parts of the U.S. Congress?#19 Name one power of the U.S. Congress.#20 How long is a term for a U.S. senator?#22 Who is one of your state’s U.S. senators now?#23 How many voting members are in the House of Representatives?#24

Previous, #20Name one power of the U.S. Congress.Next, #22How long is a term for a U.S. senator?

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