 The city area code is 71 . The city was incorporated in 1871 (Huntington) . The city Cleveland, Ohio province is East Java . Cleveland, Ohio is located in Colombia . The city is Area: 418 km2 (161 sq mi) in area . The demonym of the city Cleveland, Ohio is Mashhadi, Mashadi, Mashdi (informal) . The coordinates of the city are  31°12′N 29°55′E﻿ / ﻿31.200°N 29.917°E . The city water area is 3.73 sq mi (9.67 km 2 ) . The metro region has 3,500,000 (estimated) population . Cleveland, Ohio is at an elevation of 118 m . The lowest elevation of Cleveland, Ohio is 865 m  . This city is named after Confluence of Grand River and Gunnison River . Marvin Rees (Lab) is the mayor of Cleveland, Ohio . 9,821/km 2  (25,436/sq mi) (2017) is the density of people in Cleveland, Ohio . The highest elevation of Cleveland, Ohio is 770 m (2,530 ft) . 14,100/km 2  (37,000/sq mi) is the density of people in  the urban region of Cleveland, Ohio . 1,600/km 2  (4,200/sq mi) is the density of residents in  the metro region of Cleveland, Ohio
178 sq mi is the area of Cleveland, Ohio