List of Counties and cities in Washington DC.To Search By Counties:Click Here.To Search by city, Click the First letter of the city below:D W Advertisements Counties in Washington DC Click County Name for detailed Statistics Population Cities In Washington DCStarting With The Letter D Click City for detailed Statistics Population DC 601,723Cities In Washington DCStarting With The Letter W Click City for detailed Statistics Population Ward 1 76,197 Ward 2 79,915 Ward 3 77,152 Ward 4 75,773 Ward 5 74,308 Ward 6 76,598 Ward 7 71,068 Ward 8 70,712