The urban region is 234.72 km 2  (90.63 sq mi) in area .  The city area code is 22 . Population (2012): 3,937,451 is the population of Columbia, South Carolina . The mayor of Columbia, South Carolina is Pedrito Tomas Pereira Caballero . Columbia, South Carolina is the government of National Park Service . 9,584.10/sq mi (3,717.14/km 2) is the density of people in Columbia, South Carolina . The density of  residents in  the metro region of Columbia, South Carolina is 1,500/km 2  (3,900/sq mi) . The coordinates of the city are  39°1′10″N 125°44′17″E﻿ / ﻿39.01944°N 125.73806°E . This city is named after Quitu . On 1799 (Guyandotte) the city was incorporated . The metro region has 4,597,134 population . The land area of the city is 138.75 sq mi (359.36 km 2 ) . The Columbia, South Carolina city highest elevation is 770 m (2,530 ft) . The Columbia, South Carolina citys' lowest elevation is 75 m  . The city water area is 21 km 2  (8 sq mi) . The density of  people in  the urban region of Columbia, South Carolina is 14,100/km 2  (37,000/sq mi) . Columbia, South Carolina is located in Germany . The province of the city Columbia, South Carolina is Sichuan . The demonym of the city Columbia, South Carolina is Indorian . The city has the postal code 080020
Water covers 708 sq mi area of the city