The e-Government represents the government-citizen relationship, through the use of information technologies. Through e-Government the governments, offer different utilities and information, trying with this, to make life easier for citizens and to facilitate the public administration. This implies, among other things, strong data exchange between government and citizens. This leads us to think that the quality of the data could become an important factor when attempting to promote the use of e-Government. Consequently, this article focuses on studying the views of citizens regarding the presence of data quality in Municipal e-Government applications. Concretely, the case study, has shown that citizens recognize and prefer an application with improved data quality.