 The city area code is 775 . Evansville, Indiana is the government of National Park Service . Population (2006) : 3,550,000 is the population of the urban region of Evansville, Indiana . Evansville, Indiana is at an elevation of 20 ft . The city Evansville, Indiana demonym is Caleño . The lowest elevation of Evansville, Indiana is 3 ft . The metro region is 7,952 sq mi (20,596 km2) in area . The water area of the city is 0 km 2  (0 sq mi) . The Evansville, Indiana city highest elevation is 241.9 m (793.6 ft) . Evansville, Indiana is located in Tunisia . 6.07 sq mi (15.73 km 2 ) is the area of the city namedEvansville, Indiana . The province of the city Evansville, Indiana is Liaoning . The density of  residents in Evansville, Indiana is 15,000/km 2  (40,000/sq mi) . The coordinates of the city are  31°12′N 29°55′E﻿ / ﻿31.200°N 29.917°E . The city has the postal code 3000 00 -  3019 00 . The density of  people in  the metro region of Evansville, Indiana is 1,500/km 2  (3,900/sq mi) . The land area of the city is 527 km 2  (203 sq mi) . The city was incorporated in 1 October 1984
The city is at a height of 18 m