Choropleth map
![A choropleth map that visualizes the fraction of Australians that identified as Anglican at the 2011 census](/Images/godic/202502/10/Australian_Census_2011_demographic_map_-_Australia_by_SLA_-_BCP_field_2715_Christianity_Anglican_Persons.svg5839.png")
![Incorrect (population, left) and correct (population density, right) application of a choropleth to data for Boston, Massachusetts](/Images/godic/202502/10/Choropleth-density5840.png")
![A choropleth map (top) and a dasymetric map (bottom) of the population of the San Francisco Bay Area in 2000.[8]](/Images/godic/202502/10/DasymapBG_Bay_Area_choropleth_and_dasymetric_maps5840.jpg")
A choropleth map (from Greek χώρο ("area/region") + πλήθος ("multitude")) is a thematic map in which areas are shaded or patterned in proportion to the measurement of the statistical variable being displayed on the map, such as population density or per-capita income.