Osinsky Uyezd () was an administrative division of Perm Governorate, Russian Empire, which existed in 1781–1923. Administrative center was town of Osa. Area: 19,246 km². Demographics At the time of the Russian Empire Census of 1897, Osinsky Uyezd had a population of 321,774. Of these, 82.7% spoke Russian, 10.7% Bashkir, 4.8% Tatar and 1.8% Udmurt as their native language. References Sources Brockhaus and Efron Encyclopedic Dictionary (1890–1907) 1781 establishments in the Russian Empire Uezds of Perm Governorate History of Perm Krai History of Udmurtia