Meaning of choropleth map in English:

choropleth map

Pronunciation /ˈkɒrə(ʊ)plɛθ/


  • A map which uses differences in shading, colouring, or the placing of symbols within predefined areas to indicate the average values of a particular quantity in those areas.

    ‘They also compared a choropleth map showing the number of people living in each state with one showing population density.’
    Compare with isopleth
    • ‘Care is needed in the interpretation of all maps, and choropleth maps are no exception.’
    • ‘On a choropleth map, cartographic convention assigns the darkest color to the highest value.’
    • ‘An important consideration in producing a choropleth map is the choice of classification scheme to be used.’
    • ‘Because these objectives often conflict, a choropleth map that is best for one objective may not be best for others.’


1930s choropleth from Greek khōra ‘region’ + plēthos ‘multitude’.