Frankfurt (Oder) (German pronunciation: [ˈfʁaŋkfʊɐt], German: Frankfurt an der Oder, abbreviated Frankfurt a. d. Oder, Frankfurt a. d. O., Frankf. a. d. O.) is a town in Brandenburg, Germany, located on the Oder River, on the German-Polish border directly opposite the town of Słubice, which was part of Frankfurt until 1945. At the end of the 1980s, it reached a population peak with more than 87,000 inhabitants. The number dropped below 70,000 in 2002 and was just above 60,000 in 2010.