Generally, any EU-related article is considered to be a valid topic for this project; its primary work, however, is concentrated in the following areas of the EU:
- Institutions, activities and policies
- Economy, including Societates Europaeae
- Enlargement process
- History and Treaties
As of 8 May 2024, there are 6,687 articles within the scope of WikiProject European Union, of which 2 are featured. This makes up 0.1% of the articles on Wikipedia and 0.02% of featured articles and lists. Including non-article pages, such as talk pages, redirects, categories, etcetera, there are 18,344 pages in the project.