Globally, there is a scale of views about family functioning and wellbeing with a great deal of conflicting evidence. In Yemen, conservative social traditions are the norms. Yemen has one of the highest population growth rate and the highest rate of unmet need for FP in the world. This study aimed to explore the perception and attitude about family functioning and attitude among married and unmarried people in selected Yemeni Governorates. The study was conducted in April–May 2014 through house to house community-based cross-sectional survey with a purposively selected sample in 21 districts in 3 Yemeni governorates. The target population was Yemeni citizens aged 15+ years present in households in the targeted districts at the time of data collection. Married and un married respondents were approached equally with a pre-tested questionnaire and only consented respondents were enrolled. Analysis was done using the statistical package for Social Sciences version 22. Differences between married and unmarried respondents was tested by Chi squared test (χ²). Statistical significance was set at p˂0.05. The study involved 2217 respondents. Married and unmarried respondents were not different in their perception and attitude regarding family size, the negative influence of large family size, the relation of family size to children education and age at marriage, and some economic aspects in relation to large family size. However, they differently perceive the meaning of the family; reasons for establishing not different the family and for having children; decision makers for continuation of children education; reasons for postponing marriage, the influence of having too male children on increasing family income and on boosting father’s prestige amongst others. In conclusion; married and unmarried were not different in most of the addressed issues. The few differently perceived issues reflect differences in life experience, reality and social responsibilities. There is a need for further studies to monitor practices related to demographic changes over time in the Yemeni society.