E-petitions constitute a promising method of increasing public participation and engagement in government processes. However, there is a lack of knowledge of why some government entities implement e-petitions, while others do not. Moreover, it is unknown why some organizations may receive many e-petitions while others receive relatively few. Thus, in this paper, we aim to fill these gaps by investigating the implementation and use patterns of e-petitions based on data from Swedish local governments. Through statistical analysis of data related to demography, economy, technology, and democracy, our findings unveil variations in municipalities’ implementation of e-petitions and citizens’ use of them. The results reveal that municipalities with a relatively large population and established modes of local democracy are more inclined to implement e-petitions than smaller jurisdictions. However, we also found that the number of incoming e-petitions per capita is negatively correlated with population size. Thus, the presence of institutionalized work structures related to local democracy is an important precursor for the implementation of e-petitions, while previous experience with communication technologies had a positive effect on the number of incoming petitions. In addition to these findings, the novelty of our study lies in the use of several official data sources to seek explanations for the implementation and use of e-petitions in local government. By doing so, this study has paved the way for similar research in other contexts. The paper concludes with implications for both research and practice as well as suggestions for future studies.