Roman Catholic Diocese of Koszalin-Kołobrzeg Tags: Clerical Administrative Region, Diocese.The Roman Catholic Diocese of Koszalin-Kołobrzeg (Latin: Coslinen(sis) – Colubregan(us)) is a diocese located in the cities of Koszalin and Kołobrzeg in the Ecclesiastical province of Szczecin-Kamień in Poland. thumbnail area (km2) 1.464e+10 country Poland Established 28 June 1972 jurisdiction Diocese province Roman Catholic Archdiocese of Szczecin-Kamień Learn more... Loading...