This study aims to measure and analyse the social and economical cost of Traffic Accidents in the Hashimyat Jordanian Kingdom governorates. The Study employs the descriptive approach to achieve its goals. Data information were collected from their origins and processed employing the techniques: partial correlation, multiple regression, and sum of ranke analysis. The study concluded the existence of differences in the social and economic costs of traffic accidents between the Kingdom governorates and this difference is related differences in population figures, number of registed vehicles, and traffic accident counts. The study, classified the kingdom governorates according to the levels of socio economic costs into three levels: High cost level, medium and low.