In April 1929, the French authorities in Algeria commissioned a “general survey of the native female workforce,” as part of broader reforms in vocational education and handicrafts policy. Drawing on a wide range of administrative and missionary sources, this article traces the origin and implementation of the survey, showing how Algerian women’s work was made visible, classifiable, and governable in the service of colonial economic and ideological goals. It argues that cultural and statistical representations of Algerian women defined the forms and conditions of their integration into state-sponsored handicrafts, specifically through the promotion of home-based labor. It also explores how the data were shaped by the practices, interpretations, and agendas of the men and women who requested, collected, formatted, and transmitted them. Situating the survey within longer standing practices of quantification, this article shows how Algeria functioned as a colonial laboratory for experimenting with new categories aimed at transforming women into human resources in the service of colonial mise en valeur. After outlining the political goals of the survey in the 1920s, this article examines the measurement criteria used, which reveal the difficulty of capturing forms of work that blur the boundaries between home-based labor and wage labor. It then reconstructs the chain of information production, highlighting the political and personal factors underlying it, as well as the intermediaries on whom administrators relied. Finally, it turns to one of these actors, the missionary congregation of the White Sisters, whose private archives offer valuable insight into everyday practices of quantification.