Job satisfaction influences the quality of health care services. Information concerning the level of job satisfaction among care-providers in Abha, southwestern of Saudi Arabia and factors influencing it are inadequate. The aim of this study ws to determine the level of work satisfaction of primary health care [PHC] providers and to establish the socio-demographic factors that determine it in PHCCs of Abha, southwestern region of Saudi Arabia. A cross-sectional survey of 179 PHC providers was undertaken. With the help of Abha Health sector of PHCCs, self-administered questionnaires were distributed. The questionnaires, which were anonymously answered, consisted of socio-demographic and 90 items related to job satisfaction, on a Likert 1-6 scale. The overall median job satisfaction scale was -41, where 20.7% were satisfied, 1.1% were equivocal and 78.2% were not satisfied. Dissatisfaction was encountered more in relation to external than internal dimensions. The median job satisfaction scale of those in the age group 20 to less than 35 years was significantly lower than that of the age group 50 years and more [p=0.006]. Saudi health workers had a significantly lower median job satisfaction scale than non-Saudi health workers [p=0.006]. No significant difference was detected when sex, qualification, language and duration of practice were considered. The logistic regression analysis revealed that age, duration of practice and language were the only significant independent predictors of job satisfaction. Satisfaction was increased with the increase of age, decrease of duration of practice and among non-Arabic speakers. The model explains about 14% of the variation associated with job satisfaction. The overall alpha coefficient of reliability of the multidimensional job satisfaction scale was 0.96 for importance and 0.98 for satisfaction. Correlation coefficients of different dimensions were statistically significant. It was recommended to pay careful attention to the potential impediments to satisfaction among younger ages, Arabic speakers and those with long duration of practice; and that further research is required to fully evaluate the effect of external dimensions on the health care providers.