Tsilninsky District
Tsilninsky District () is an administrative and municipal district (raion), one of the twenty-one in Ulyanovsk Oblast, Russia. It is located in the north of the oblast. The area of the district is . Its administrative center is the rural locality (a selo) of Bolshoye Nagatkino. Population: 27,543 (2010 Census);  The population of Bolshoye Nagatkino accounts for 19.8% of the district's total population. References

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Districts of Ulyanovsk Oblast