The evolution of sedentariness in east-central Mississippi seems to follow specific patterns when both time and space are accounted for. Prehistoric pottery counts and frequencies from sites located throughout east-central Mississippi were examined in order to better understand settlement patterns. This study combines data from both newly recorded and previously recorded sites. These data are analyzed using frequency seriation and correspondence analysis, thus allowing the investigation of settlement patterns through both space and time. The results are used to address competing hypotheses concerning a gradual spread of sedentary settlement versus a very rapid adoption of sedentariness. The main factors organizing assemblages from sedentary settlements in this area seem to be distance from a major river and population growth. The data indicate that sedentariness was adopted gradually.