According to this news story, over 15,000 Arizona registered voters have become members of the No Labels Party. The Secretary of State’s website has not yet posted any data later than July 1, 2023, but the October 1 figure will be posted soon. Apparently the reporters for this story got the data from individual counties.
As of July 1, No Labels had 8,505 registrants. At that July tally, the Libertarian Party was still larger than No Labels, with 33,738 members.
If No Labels reaches approximately 29,000 registrants by next year, it will be ballot-qualified for 2026 as well as for 2024, even if it doesn’t run any presidential nominee in 2024. In Arizona, a party that has two-thirds of 1% registration remains on the ballot. Thanks to Richard Grayson for the link.