Article from 1999, referenced study likely from earlier.

The average American walks less than 75 miles a year - about 1.4 miles a week, barely 350 yards a day.

Thank you to @urlyman@mastodon.social for pointing this out.

Archive link: https://web.archive.org/web/20240218142310/https://www.independent.co.uk/arts-entertainment/bryson-s-america-why-would-you-walk-1079183.html