Which term describes a map that emphasizes a single data theme such as population, often using color or symbols?

• A. Cartogram
• B. Thematic map
• C. Cartograph
• D. Dot map

Answer: (B)

A map that highlights one subject across space, using color, shading, or symbols to show how that theme varies, is a thematic map. This category is built exactly for illustrating a single data theme like population, allowing you to see spatial patterns at a glance.

Other options describe more specific methods rather than the overarching category. A cartogram reshapes the map itself to reflect data values, which is a transformation beyond just emphasizing a theme. A dot map uses dots to represent occurrences or counts, which is a particular technique within thematic mapping. The term cartograph isn’t used to name a map type in practice. So the best general term for describing a map that emphasizes population with visual variables is a thematic map.