The Center for Immigration Studies summarizes the growth of the immigrant-related eligible voter population (both naturalized adult immigrants and their U.S.-born children):

Nationally, the number of voting-age citizens who are immigrants or their children increased by 71 percent, while the rest of the potential electorate grew by just 15 percent between 2000 and 2020. As a share of eligible voters, immigrants and their children increased their share from 14 percent to 20 percent.

As a share of eligible voters, between 2000 and 2020 adult immigrants and their adult U.S.-born children increased the most in New Jersey, from 23 percent to 36 percent; Texas, from 14 percent to 25 percent; Maryland, from 12 percent to 23 percent; California, from 33 percent to 43 percent; Georgia, from 4 percent to 13 percent; Virginia, from 7 percent to 16 percent; and in North Carolina, from 4 percent to 12 percent.