The Tennessean reports in this article that 1.1% of eligible Tennessee voters are Hispanic. The total individual number is 46,000.
The story is accompanied by this map that breaks the numbers into state congressional districts. The representation of Hispanic voters in various districts ranges from 0.6% in Chattanooga's 3rd Congressional District to 1.8% in Nashville's 5th Congressional District.
Hispanics have not exercised much political clout despite expectations to the contrary in past elections, but the article points out that small numbers of voters can tip the scales in local elections and close races.