Property and political boundaries
Election maps – Search our interactive map of election boundaries including Northern Ireland.
County maps – Discover our interactive map of GB with county boundaries past and present.
Outline maps – Free downloadable maps in a variety of formats for presentations, leaflets and more.
OS OpenSpace – A free API that allows you to embed and use our maps in website or mobile applications.
Boundary-Line – Use our boundary mapping data to enhance analysis of demographic, social or political data.