Slightly more than 100,000 people had already voted in the Aug. 30 primaries as of Wednesday, according to the state Division of Elections website.
Of those who have returned vote-by-mail ballots, 46,730 are Republicans, 38,917 are Democrats and 11,750 are without party affiliation. An additional 2,658 ballots have been returned by people with minor party affiliations.
Among individual counties, Hillsborough County reported the most returned ballots, with 15,978. Of those ballots, 7,136 are from Democrats and 6,698 are from Republicans.
Next highest is Pinellas County with 12,174, of which Republicans account for 5,498 and Democrats make up 4,549.
Statewide, county supervisors of elections had sent out more than 2.2 million ballots for the Aug. 30 primaries, as of Wednesday morning. Of the ballots yet to be returned, 953,873 went to Republicans, 810,034 to Democrats, 49,560 to people with minor party affiliations and 333,894 to independents.
Floridians who want ballots mailed to them for the primaries must make requests with county elections offices by Aug. 24. Registered voters can pick up vote-by-mail ballots from their counties up to the day before the election.