Of the 3.3 million mothers with children under a year old, 55.1 percent were in the labor force in 2007, little changed from 2006.
The labor force participation rate for unmarried mothers with children under a year old in 2007 was 56.5 percent. The participation rate for married mothers with children under a year old was 54.6 percent in 2007.
These data on the labor force participation of mothers are produced by the Current Population Survey. "Infants" refers to children under 1 year. "Unmarried mothers" include never-married, divorced, separated, and widowed mothers. More information can be found in "Employment Characteristics of Families in 2007," (PDF) (HTML) news release USDL 08-0731.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Labor force participation of mothers with infants in 2007 at https://www.bls.gov/opub/ted/2008/jun/wk1/art03.htm (visited December 09, 2022).