One of the important purposes of regional revitalization activities by local governments is so-called “city promotion”, the improvement of external recognition, attractiveness, and reputation, and so on. On the other hand, reliable methods for quantitatively measuring and evaluating the effectiveness of those activities have not been sufficiently established, and this has become a challenging issue when evaluating such a “city promotion” project. This study attempts to measure the public relations effectiveness of community revi- talization efforts utilizing “water” as a community resource in the case of Ono City, Fukui Prefecture, which is famous for its spring water. We collected articles containing the keywords “Ono city” and “water” in the Fukui Shimbun, a local newspaper that occupies a large share in Fukui Prefecture, over the past 15 years, and analyzed the negativity and positivity associated through the sentiment analysis with the word “water” in these articles. As a result, a certain consistency was confirmed between city promotion efforts and changes in the level of negative-positive values, and it became clear that the approach of sentiment analysis using articles in local newspapers has a certain effectiveness as one of the methods to assess the results of city promotion policies.