Rees is a town in the district of Kleve in the state of North Rhine-Westphalia, Germany. It is located on the right bank of the Rhine, ap…Rees is a town in the district of Kleve in the state of North Rhine-Westphalia, Germany. It is located on the right bank of the Rhine, approximately 20 km east of Kleve. The population in 2005 was 22,559. Founded in 1228, Rees is the oldest town in the lower Rhine area.