_____________________________________________________________________________________________________ *Corresponding author: E-mail: ademola.adelekan@gmail.com, ademola.adelekan@bluegateinitiative.org; Journal of Education, Society and Behavioural Science 34(10): 28-39, 2021; Article no.JESBS.67276 ISSN: 2456-981X (Past name: British Journal of Education, Society & Behavioural Science, Past ISSN: 2278-0998) Socio-environmental Factors as Determinants of Emotional Well-being of Adolescents in Foster Homes in South-Western Nigeria Christiana A. Oluwamotemi 1 , Olumide E. Olajide 2 , Elizabeth R. Edoni 3 , Chidinma Emma Ukoha 4 and Ademola L. Adelekan 5* 1 Department of Public Health Nursing, University College Hospital, Ibadan, Nigeria. 2 Department of Adult Education, University of Ibadan, Nigeria. 3 Department of Community Health Nursing, Niger-Delta University, Wilberforce Island, Nigeria. 4 Johns Hopkins University CCP, Baltimore, USA. 5 Blue Gate Research Institute, Ibadan, Nigeria. This work was carried out in collaboration among all authors. Authors CAO and OEA designed the study and wrote the protocol. Authors ALA, OEA and CAO supervised the data collection and performed the statistical analysis. Authors ERE and CEU wrote the first draft of the manuscript together with author ALA. All authors read and approved the final manuscript. Article Information DOI: 10.9734/JESBS/2021/v34i1030360 Editor(s): (1) Dr. Gustavo Henrique Silva de Souza, Federal Institute of The North of Minas Gerais [Instituto Federal do Norte de Minas Gerais – IFNMG], Brazil. Reviewers: (1) Sumbane Gsakani Olivia, University of Limpopo, South Africa. (2) Ferracin Elisa, Italy. Complete Peer review History: https://www.sdiarticle4.com/review-history/67276 Received 20 February 2021 Accepted 28 April 2021 Published 02 October 2021 ABSTRACT Aims: The study explored the socio-environmental factors as determinants of the emotional well- being of adolescents in foster homes in southwestern Nigeria. Study Design: A descriptive survey research of ex-post-facto type was employed. Place and Duration of Study: Foster homes in six states in southwestern Nigeria. Methodology: multi-stage sampling was used in selecting 555 respondents for this study and the data collection was done using a semi-structured questionnaire and data analyzed using descriptive and inferential statistics. Results: The study revealed that peer influence, academic performance and attitude of the foster family were significant to emotional wellbeing. All the components of social factors correlated with Original Research Article