Kostiantynivka () is a village in Cherkasy Raion, Cherkasy Oblast (province) of Ukraine.
Kostiantynivka was previously located in the Smila Raion. The raion was abolished on 18 July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Cherkasy Oblast to four. The area of Smila Raion was merged into Cherkasy Raion.
Population Language Distribution of the population by native language according to the 2001 census: Language Number Percentage Ukrainian 2 633 95.78% Russian 110 4.00% Other 6 0.22% Total 2 749 100.00% Those who did not indicate their native language or indicated a language that was native to less than 1% of the local population.
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