The communication process in extension activities occurs not only between extension workers and farmers but also among extension workers. Communication among extension workers forms a social network. This study aims to analyze the popularity of extension workers within social networks in exchanging information on yard land use. The research was conducted using a qualitative approach and the whole network analysis method using Pajek 5.18 software. The research informants were extension workers in the Yogyakarta Special Region, spread across Sleman Regency, Bantul Regency, Kulon Progo Regency, Gunungkidul Regency, and Yogyakarta City. The results showed that the popular extension workers in each district/city were those from their respective districts/cities. Extension workers are popular because they have the most communication activities (in degree) or receive the most information about yard land use in social networks. Popular extension workers play an important role in social networks, such as having high closeness centrality to accelerate the flow of information and acting as intermediaries for other extension workers to control the flow of information.