+57 4 is the area code of Cincinnati, Ohio . On February 17, 1909 the city was incorporated . The city water area is 0.736 sq mi (1.905 km 2 ) 36.58% . Cincinnati, Ohio is the government of Kamloops City Council . The population of the metro region is 1,973,470 (2016 Census) . 6°14′40″S 155°23′02″E﻿ / ﻿6.24444°S 155.38389°E are the coordinates of the city. . The density of  residents in  the urban region of Cincinnati, Ohio is 3,423/km 2  (8,870/sq mi) . The city land area is 225.73 sq km  (87.15 sq mi) . Cincinnati, Ohio is located in Indonesia . The demonym of the city Cincinnati, Ohio is Guayaquilean . This city is named after Henry E. Huntington . The population of the urban region is 1,033,622 . 4,300/km 2  (11,000/sq mi) (2019) is the density of residents in  the metro region of Cincinnati, Ohio . Cincinnati, Ohio is at an elevation of 656 ft . The Cincinnati, Ohio city highest elevation is 424 m (1,391 ft) . The postal code of the city is EC1701 . The lowest elevation of Cincinnati, Ohio is 190 m  . Cincinnati, Ohio has 1,042,641 population
More than 0 km 2 area of the city Cincinnati, Ohio is water