There are 142 Art Galleries & Dealers in District of Columbia , District of Columbia, serving a population of 672,391 people in an area of 62 square miles. There is 1 Art Gallery & Dealer per 4,735 people, and 1 Art Gallery & Dealer per square mile.
In District of Columbia, District of Columbia is ranked 1st of 1 counties in Art Galleries & Dealers per capita, and 1st of 1 counties in Art Galleries & Dealers per square mile.