This paper presents the population of Colonia Sarmizegetusa, the first city of the province of Dacia. This is a case study within the project Romans 1 by 1 (, a database which aims to comprise the population of Dacia, Moesia Superior, and Moesia Inferior. This study presents a micro-result of the entire project, providing information to researchers not only on the people who lived in the Dacian metropolis but also on those individuals transiting through Colonia Sarmizegetusa, who got involved in the social, religious and political life of the city by erecting monuments or being dedicated to. Until this point, by compiling all existing sources, the database has recorded 495 inscriptions (the inscription records are numbered starting with 00001DS) and 706 people (each with a personal record, with a unique ID) from Colonia Sarmizegetusa. The paper’s conclusions present four results in the form of statistics, consisting of: (1) the analysis of the 495 epigraphic monuments; (2) identifying and implicitly analysing all the individuals attested on the inscriptions discovered at Colonia Sarmizegetusa; (3) population mobility, and (4) various types of relationships mentioned by epigraphic sources.