If you are referring to a US state senator (i.e. membership to the Senate of a particular state in the United States), it depends on which state you are asking about.
Senators of the US Congress are elected for 6 year terms.
A Senator's term of office is six years.A Senator's term of office is six years.A Senator's term of office is six years.A Senator's term of office is six years.A Senator's term of office is six years.A Senator's term of office is six years.
6 years
Six years .
6 years
A United States senator's term of office is six years.
16 years
6 years
8 Years
Six-Years
6 years
4 years to be exact
the answer is 4 years