Mariinsko-Posadsky District (; , Sĕntĕrvărri rayonĕ) is an administrativeLaw #28 and municipalLaw #37 district (raion), one of the twenty-one in the Chuvash Republic, Russia. It is located in the northeast of the republic. The area of the district is . Its administrative center is the town of Mariinsky Posad. Population: 26,959 (2002 Census); The population of Mariinsky Posad accounts for 38.0% of the district's total population.
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External links Сĕнтĕрвăрринчи Акатуй-2017