Washington, D.C., USA, is located at [38_53_42_N_77_02_11_W_region:US-DC_type:city 38°53′42″N, 77°02′11″W] (the coordinates of the Zero Milestone, on the Ellipse), or for simplicity, at [38_54_N_77_02_W_region:US-DC_type:city 38°54′N, 77°02′W] or [38.89_N_77.03_W_region:US-DC_type:city 38.89° N 77.03° W] . According to the United States Census Bureau, the city has a total area of 177.0 km² (68.3 mi²). 159.0 km² (61.4 mi²) of it is land and 18.0 km² (6.9 mi²) of it is water. The total area is 10.16% water.