It's an older story (from May) but it looks like only about 23% of US homeowners are mortgage-free. Although they were also including renters in this analysis.

It's an older story (from May) but it looks like only about 23% of US homeowners are mortgage-free. Although they were also including renters in this analysis. (https://www.forbes.com/sites/johnwake/2023/03/31/us-has-3rd-lowest-percentage-of-households-that-own-their-homes-without-mortgages/?sh=20c5b9b73124 https://www.forbes.com/sites/johnwake/2023/03/31/us-has-3rd-...) I couldn't find anything that specifically looked only at homeowners, rather than at homes themselves.