A map of communes of Luxembourg colour-coded by population density.  Population density is denoted by eight different shades of red; in order of increasingly darker shades, the lower bounds (in people/km²) are: 0, 50, 70, 100, 150, 250, 500, 1000, 2600.
<a href="//commons.wikimedia.org/w/index.php?title=User:Apelschnaps/Signature&amp;action=edit&amp;redlink=1" class="new" title="User:Apelschnaps/Signature (page does not exist)">Apelschnaps</a>
Own work based on <a href="//commons.wikimedia.org/wiki/File:Communes_of_Luxembourg.PNG" title="File:Communes of Luxembourg.PNG">Image:Communes of Luxembourg.PNG</a>.