Despite the benefits of a COVID-19 vaccination, too few people in Germany were still considered vaccinated in the summer of 2022. This was explained, among other factors, by socio-demographic differences. The article also analyses this correlation by including the sources of information used on corona vaccination based on the data from the third survey of the "Accompanying research on the communication of corona vaccination in Germany" (CoSiD study, Nov./Dec. 2021; n = 4366 16-year-olds and older).Bi- and multivariate correlations were analysed between the uptake of vaccination or the intention to vaccinate of the unvaccinated and socio-demographic characteristics as well as sources of information on COVID-19 vaccination.Of the respondents, 87.7% have been vaccinated at least once. The vaccination rate tends to increase with age, education level and household income and is higher among people in the old federal states and without a migration background. The sources of information on COVID-19 vaccination were mostly discussions among family, friends and colleagues (81.8%) and German TV and radio stations (77.1%). In the multivariate model, higher proportions of people without vaccination intentions were found among respondents who obtained information from TV and radio stations from abroad as well as from social media.Information offerings for specific target groups must take social inequalities even more into account. One challenge here is that the use of different information sources is related to different vaccination intentions. In particular, people with vaccination intentions and the undecided can be reached with easily understandable, trustworthy information offerings.