There are 2 places named Kostomarovka in Ukraine.
All places in the world called "Kostomarovka".
Ivanovka (22)
Antonovka (21)
Aleksandrovka (20)
Mikhaylovka (20)
Kamenka (20)
Nikolayevka (19)
Tarasovka (19)
Kalinovka (19)
Andreyevka (19)
Semënovka (18)
Maryanovka (18)
Fedorovka (18)
Alekseyevka (18)
Pavlovka (17)
Dmitrovka (17)
Krasnoye (17)
Sofiyevka (16)
Konstantinovka (16)
Bogdanovka (16)
Popovka (16)
Ulyanovka (16)
Vasilyevka (15)
Berëzovka (15)
Sosnovka (15)
Stepanovka (15)
Zhovtnevoye (15)
Vladimirovka (15)
Grigoryevka (14)
Novosëlka (14)
Gorodishche (14)