The city was incorporated in 1871 (Huntington) . The city province is Razavi Khorasan . 7,500/km 2  (19,000/sq mi) is the density of residents in  the urban region of Nizhny Novgorod . The city has the postal code 1100 . Nizhny Novgorod is located in Republic of the Congo . Nizhny Novgorod is the government of National Park Service . Nizhny Novgorod is at an elevation of 605 ft . The area of the urban region is 227.70 km 2  (87.92 sq mi) . The mayor of Nizhny Novgorod is Tri Rismaharini . 3,194.38/km 2  (8,273.4/sq mi) is the density of people in Nizhny Novgorod . The coordinates of the city are  31°12′N 29°55′E﻿ / ﻿31.200°N 29.917°E . The city land area is 1.275 sq mi (3.303 km 2 ) . The Nizhny Novgorod citys' lowest elevation is 865 m  . The area of the metro region is Area: 1,190 km2 (460 sq mi) . The population of Nizhny Novgorod is Population: 2,400,653 (2012) . (+593) 4 is the area code of Nizhny Novgorod . 1,275/sq km (3,300/sq mi) is the density of people in  the metro region of Nizhny Novgorod . The highest elevation of Nizhny Novgorod is 241.9 m (793.6 ft)
The urban region of Nizhny Novgorod is 795 km 2