Ecclesiastical Kariensiek belongs to the Catholic parish Sommersell, Pastoralverbund (church association) Nieheimer Land, Dekanat (deanery) Höxter, Erzbistum (archdiocese) Paderborn.
Today the Bauernschft Kariensiek belongs to the town district (Stadtteil) Sommersell, which is part of the town (Stadt) Nieheim in the rural district (Kreis) Höxter, Government district (Regierungsbezirk) Detmold, Nordrhein-Westfalen, Deutschland.
From 1815 to 1866 the Bauernschaft Kariensiek belonged to the municipality (Gemeinde) Sommersell, administrative district (Amt) Nieheim, rural district (Kreis) Höxter, Government district (Regierungsbezirk) Minden, province (Provinz) Westfalen, Kingdom (Königreich) Preußen, Deutscher Bund.
I have looked on matricula, where the Catholic church records were put online for free, but Sommersell is unfortunately not currently available online.