The lowest elevation of Johannesburg is 1,250 ft . Johannesburg is located in Flathead County & Glacier County, Montana, United States . The population of the metro region is 4,005,015 . The postal code of the city is 1100 . The city was incorporated in November 7, 1861, as Denver City, C.T. . The city Johannesburg province is Cebu (geographically only) . The highest elevation of Johannesburg is 425 m (1,394 ft) . Area : 993.5 km2 (383.6 sq mi) is the area of the urban region of Johannesburg . The area of the city is Area: 572 km2 (221 sq mi) . The density of  people in Johannesburg is 700/km 2  (1,800/sq mi) . Johannesburg is named for James W. Denver . The density of  inhabitents in  the metro region of Johannesburg is 6,600/km 2  (17,000/sq mi) . The density of  inhabitents in  the urban region of Johannesburg is 3,423/km 2  (8,870/sq mi) . Pramila Pandey (BJP) is the mayor of Johannesburg . The water area of the city is 3.73 sq mi (9.67 km 2 ) . The coordinates of the city are 26°10′S 28°18′E﻿ / ﻿26.167°S 28.300°E . Johannesburg is at an elevation of 726 m . The city Johannesburg demonym is Guayaquilean .  The city area code is +55 (41)
Lowest point is 45 m below the highest point of this city