Maćkowa Ruda , is a village in the administrative district of Gmina Krasnopol, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland.
The faithful of the Roman Catholic Church belong to the parish of the Immaculate Conception of the Blessed Virgin Mary in Wigry
History In 1827 it was recorded that the population of the village numbered at 187 and 31 homes and in 1884 it was numbered at 397 people and 44 homes.
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