In the current 118th Congress (2023-2025), there are 39 Hispanic members in the House of Representatives and 8 Hispanic members in the Senate, totaling 8.8% of members, compared with 19% of the entire U.S. population.

In the 108th Congress (2003-2005), there were 22 Hispanic members total, making up about 4% of Congress.

Democratic Rep. Ruben Gallego is running for U.S. Senate in Arizona against Kari Lake. A challenge for Gallego is that Hispanic turn out of all eligible (not registered) Hispanics is sharply less, about 50%, compared with whites, which is over 70%.  According the 2021 American Community Survey, 32% of Arizona’s population aged 18 and over identified as Hispanic or Latino.  The white population 18 and older is 61% of the population. thus, the adult Hispanic population is half the size of the adult white population. But given the 50 – to -70 % differential in voting, the number of Hispanics who actually vote will be 35% of whites.