Abstract: The research titled "Cooperation Model for Local Development of Newly Emerged Communities and Local Administrative Organization in Pathum Thani Province" aimed to explore: cooperation features for local development between newly emerged communities and local administrative organization in Pathum Thani province, influential factors affecting the cooperation for local development between newly emerged communities and local administrative organization in Pathum Thani province, cooperation encouragement model for local development between newly emerged communities and local administrative organization in Pathum Thani province. It was a mixed method research, integrating qualitative and quantitative approaches. The sample consisted of 649 chairpersons or representatives of corporations and leaders and people in the newly emerged communities. The key informants were a total of 128 people, consisting of 64 chief executives or commissioned officers of the LAO in Pathum Thani and 64 leaders or designated representatives from each newly emerged community. Quantitative data were analyzed by the methods of descriptive statistics, percentage, standard deviation and Pearson correlation coefficient.