7,500/km 2  (19,000/sq mi) is the density of people in  the urban region of Cincinnati, Ohio . 10°24′N 75°30′W﻿ / ﻿10.400°N 75.500°W are the coordinates of the city. . The city water area is 186 km 2  (72 sq mi) . Cincinnati, Ohio is the government of U.S. National Park Service . Cincinnati, Ohio is located in Sweden . The city land area is 1.275 sq mi (3.303 km 2 ) . 5,300/km 2  (14,000/sq mi) is the density of people in Cincinnati, Ohio . The urban region is 225,574 km 2  (87,095 sq mi) in area .  The city area code is 242 . The city province is Alborz . On March 6, 1836 (city) the city was incorporated . The highest elevation of Cincinnati, Ohio is 324 m (1,063 ft) . 13,542,900 is the population of the metro region of Cincinnati, Ohio . Cincinnati, Ohio is at an elevation of 98 m . This city is named after Calgary, Mull . Ken Christian is the mayor of Cincinnati, Ohio . The postal code of the city is 130000 . 4,484/km 2  (11,610/sq mi) is the density of residents in  the metro region of Cincinnati, Ohio
Cincinnati, Ohio was legally declared as a city in March 6, 1836 (city)