The city is 68.17 sq mi (176.56 sq km) in area . The city water area is 4.12 sq mi (10.67 km 2 ) . The postal code of the city is 16000 . The lowest elevation of Dallas, Texas is 620 ft . This city is named after Calgary, Mull . Dallas, Texas is at an elevation of 0 meters .  The city area code is (+90) 224 . The Dallas, Texas city highest elevation is 33 m (108 ft) . 25°25′S 49°15′W﻿ / ﻿25.417°S 49.250°W are the coordinates of the city. . 3,423/km 2  (8,870/sq mi) is the density of people in  the urban region of Dallas, Texas . The demonym of the city Dallas, Texas is Caleño . The city Dallas, Texas province is Jilin . 1,352.5/km 2  (3,527/sq mi) is the density of people in  the metro region of Dallas, Texas . On November 7, 1861, as Denver City, C.T. the city was incorporated . 3,384,569 is the population of the urban region of Dallas, Texas . The land area of the city is 5.39 sq mi (13.96 km 2 ) . The density of  people in Dallas, Texas is 17,000/km 2  (43,000/sq mi) . Dallas, Texas is located in Flathead County & Glacier County, Montana, United States . Armand Béouindé (since 2016) is the mayor of Dallas, Texas . Dallas, Texas is the government of Municipality of Quito
The people of the city Dallas, Texas are also known as Caleño