The aim of this paper is to study Kurd and Turk women's marriage behavior and their attitudes toward the marriage of daughters. The data are derived from a survey containing 768 samples of ever-married women in Uromiah Township. The qualified women for study were 739 in the sample. Results show that there are significant differences between Kurd and Turk women in some behavioral and attitudinal aspects related to marriage and family formation. Kinship marriage is more common among Kurds. Although the tendency to consanguine marriage decreased over time, Kurdish women still have a greater tendency than their Turkish counterparts in this regard. Results of multiple classification analysis (MCA) show that the effect of ethnicity on marriage with relatives, despite controlling for the effect of factors related to modernization and socioeconomic development, is still significant, but decreased under the impact of modernization forces over time. According to this study, women's education, place of residence, women's employment status, and type of employment are the main determinants of ethnic differences in attitudes toward the proper minimum age at marriage for daughters.