Upvote:4
According to this source (page 70), the shares of labor devoted to "industry" in the U.S. economy were 11.9% in 1800, 14.9% in 1810, 19.0% in 1820, and 20.0% in 1830, with the remainder devoted to agriculture.
'"Industrialization" was only getting started in the first half of the 19th century, but picked up greatly in the second half.