Post-bog soils developed from limnic calcareous sediments are closely related to a young-glacial landscape and postglacial lakes in Northern Poland. The studies conducted in 2010–2012 on post-bog soils near lake Dubie (Równina Drawska, NW Poland), partially used as an arable land. The goal of research was to characterise some chemical and physical properties of post-bog soils developed from carbonate deposits near lake Dubie. The soils of the analysed area developed from lacustrine chalk and calcareous gyttja belong to black earth and mucky soils. Organic matter content in surface horizons ranged from 5.0 to 14.2%, content of CaCO3 from 27.2 to 55.2%, the highest carbonate content was found in arable soil. The soils of the study area were characterised by a narrow C/N ratio, low level of total form of P and a high content of Ca. Specific density of surface horizons was in the range 2.49 to 2.58 Mg · m−3, bulk density from 0.445 to 1.212 Mg · m−3. High porosity was also found in the examined formations, from 0.826 in surface horizons and 0.700 m3 · m−3 in limnic deposits.