Nikolayevsky District, Ulyanovsk Oblast
Nikolayevsky District is an administrative and municipal district, one of the twenty-one in Ulyanovsk Oblast, Russia. It is located in the southwest of the oblast. The area of the district is. Its administrative center is the urban locality of Nikolayevka. Population: 27,211 ; The population of Nikolayevka accounts for 23.5% of the district's total population.
