The article explores the relationship between subjective well-being (SWB) and psychological well-being (PWB), two distinct yet related concepts. SWB focuses on life satisfaction and emotional balance, while PWB emphasizes personal growth, purpose, and thriving in the face of life's challenges. The study uses data from a national sample of 3,032 U.S. adults to examine how these two dimensions of well-being are influenced by sociodemographic and personality factors. Factor analysis confirmed that SWB and PWB are conceptually related but empirically distinct. The probability of optimal well-being (high SWB and PWB) increases with age, education, extraversion, and conscientiousness, and decreases with neuroticism. Adults with higher PWB than SWB were younger, more educated, and more open to experience. The study draws on two traditions in well-being research: the SWB tradition, which emphasizes life satisfaction and happiness, and the PWB tradition, which focuses on personal growth and meaningful life. These traditions have evolved separately but increasingly show connections. The study proposes a typological model of well-being based on the cross-classification of SWB and PWB levels, distinguishing between on-diagonal types (consistent levels of both well-being) and off-diagonal types (disparate levels). The study hypothesizes that sociodemographic factors, particularly age and education, and personality traits influence the combinations of SWB and PWB. Results show that higher levels of SWB and PWB are associated with higher education, older age, and lower neuroticism. Personality traits such as extraversion, neuroticism, and conscientiousness differentiate between well-being types. Openness to experience is strongly linked to PWB, while agreeableness is associated with SWB. Discriminant analysis revealed that age and education are significant predictors of well-being combinations, with higher education and older age associated with higher levels of both SWB and PWB. Personality traits also play a role, with neuroticism and extraversion differentiating between on-diagonal types, while openness to experience is linked to off-diagonal types. The study concludes that SWB and PWB are distinct yet related aspects of well-being, influenced by sociodemographic and personality factors. The findings support the idea that well-being is shaped by a combination of factors, with age and education playing key roles in determining well-being outcomes. The study highlights the importance of considering both SWB and PWB in understanding well-being and its determinants.The article explores the relationship between subjective well-being (SWB) and psychological well-being (PWB), two distinct yet related concepts. SWB focuses on life satisfaction and emotional balance, while PWB emphasizes personal growth, purpose, and thriving in the face of life's challenges. The study uses data from a national sample of 3,032 U.S. adults to examine how these two dimensions of well-being are influenced by sociodemographic and personality factors. Factor analysis confirmed that SWB and PWB are conceptually related but empirically distinct. The probability of optimal well-being (high SWB and PWB) increases with age, education, extraversion, and conscientiousness, and decreases with neuroticism. Adults with higher PWB than SWB were younger, more educated, and more open to experience. The study draws on two traditions in well-being research: the SWB tradition, which emphasizes life satisfaction and happiness, and the PWB tradition, which focuses on personal growth and meaningful life. These traditions have evolved separately but increasingly show connections. The study proposes a typological model of well-being based on the cross-classification of SWB and PWB levels, distinguishing between on-diagonal types (consistent levels of both well-being) and off-diagonal types (disparate levels). The study hypothesizes that sociodemographic factors, particularly age and education, and personality traits influence the combinations of SWB and PWB. Results show that higher levels of SWB and PWB are associated with higher education, older age, and lower neuroticism. Personality traits such as extraversion, neuroticism, and conscientiousness differentiate between well-being types. Openness to experience is strongly linked to PWB, while agreeableness is associated with SWB. Discriminant analysis revealed that age and education are significant predictors of well-being combinations, with higher education and older age associated with higher levels of both SWB and PWB. Personality traits also play a role, with neuroticism and extraversion differentiating between on-diagonal types, while openness to experience is linked to off-diagonal types. The study concludes that SWB and PWB are distinct yet related aspects of well-being, influenced by sociodemographic and personality factors. The findings support the idea that well-being is shaped by a combination of factors, with age and education playing key roles in determining well-being outcomes. The study highlights the importance of considering both SWB and PWB in understanding well-being and its determinants.