Mapping density visually

Another way to map density is to do so visually by using dots to represent quantities of things in the real world. This kind of map is called a dot density map. Each dot represents a specific count or amount. The more dots in an area, the greater the quantity. The closer the dots are together, the greater the density.

It's important to understand that ArcMap places the dots on a dot density map randomly within each polygon feature. Unlike symbols representing a point layer, the individual dots in a dot density map are not associated with actual location coordinates.

A dot density map provides a visual sense of the density of objects or quantities in the real world.