The votes of more than 24,000 Texans who tried to cast ballots by mail were thrown out in the March primary — a dramatic increase in rejected ballots in the first election held under a new Republican voting law.

Roughly 12.4% of mail-in ballots returned to the state’s 254 counties were not counted, according to figures released Wednesday by the Texas secretary of state. Just over 3 million people voted overall in the low-turnout primary.

Of 24,636 rejected mail-in ballots, 14,281 belonged to voters attempting to participate in the Democratic primary, and 10,355 belonged to voters in the Republican primary. But the rejection rate by party was fairly aligned; 12.9% of Democratic ballots were rejected and 11.8% of Republican ballots were rejected.

Put another way, 1 in every 8 mail-in voters lost their votes in their primary. The rate amounts to a significant surge in rejections compared with previous years, including the higher-turnout 2020 presidential election, when less than 1% of ballots were tossed.

Data previously collected by The Texas Tribune found rejection rates ranging from 6% to nearly 22% in 16 of the state’s 20 counties with the most registered voters, which overall rejected 18,742 mail-in ballots. In most cases, county officials said, ballots were rejected for failing to meet new, stricter ID requirements enacted by the Republican-controlled Legislature last year that require voters to provide their driver’s license number or a partial Social Security number to vote by mail.