The female work force increased 320% between 1940 and 1970, as evidenced in both urban and rural areas. This study analyzes the time a woman is willing to supply in the labor market and factors influencing that supply - wage rate, residence, education, family ~ income, and others. Results indicate that the wage in SMSA-nonfarm. areas must exceed that in nonSMSA-nonfarm areas by $.85 for women to work an equal number of hours.