This research aims to explore Satisfaction with Religiosity/Spirituality (SR/S) in a large sample of Muslims (1388 males, 1172 females) from Algeria. It also provides empirical evidence for the addition of a SR/S Domain item to the Personal Well-Being Index (PWI). A questionnaire dealing with satisfaction with a range of personal and societal domains was used. Results support previous findings (Wills Journal of Happiness Studies 10(1):49-69, 2009), and are in agreement with the recommendations of the International Well-being Group (Group discussion, IWG 2006). The new domain item makes a statistically significant -albeit a slight -contribution in predicting general satisfaction with life (SWL). Notably, higher satisfaction with religiosity/spirituality is found in women compared to men, married individuals compared to single ones, and inhabitants of the Sahara desert locations compared to people from other regions of Algeria.