This subtemplate displays a metric/imperial pair of population density values for a line in the main infobox. It is transcluded thus:

{{densdisp|unit_pref|DENSsqmi|DENSkm2|POP|AREAsqmi|AREAkm2|subdivision_name}}

where DENSsqmi and DENSkm2 are the density values to be displayed (one may be blank for automatic conversion if the other is numeric; or they may be set to auto for automatic calculation if POP and the corresponding AREA... parameter are present). Other parameters are taken from Template:Infobox Settlement.

Whether the metric or imperial value is displayed first depends on the value of subdivision_name (usually the country name) and unit_pref (which can be set to Imperial to force imperial-first display). The default for non-US non-UK countries is metric first.

Rounding is always to one decimal place; the units are not wikilinked (compare Template:Areadisp).

Example: {{densdisp|Imperial|auto| |8400|42||Canada}} produces: 200/sq mi (77,2/km²)