摘要:"Introduction: Rapid urban growth largely manifests itself in the expansion of already crowded squatter settlements and slums, placing enormous strain on public resources and presenting challenges for local health authorities. To identify the socio-demographic and other related factors of urban in-migrants of districts Dehradun & Haridwar of Uttarakhand. Methods: An observational, cross sectional study was planned among 09 settlements/slums of Urban in-migrants from districts Dehradun & Haridwar of Uttarakhand. Multi-stage & systematic random sampling method was chosen for probability sample of 609 households constituting 3485 females of reproductive age-group (15-49 years) as study population. Results: Maximum number of in-migrants was from the state of Bihar (33%) and Uttar Pradesh (32.2%). Majority of in-migrants lived in Overcrowded houses (86.53%) and in-adequate ventilation facilities (87.53%). 45.25% of the study population was illiterate & 58.05% was unskilled labor. 71(78.88%) children in the age group of 10-19 years were employed as unskilled labor. Conclusion: Majority of the migrants are poor, illiterate from backward communities. In cities, these floating population refrains from seeking health services especially from organized public & private sector due to various reasons like poverty, illiteracy, ignorance.