Teltow shared its borders with the former West Berlin, and so during the period 1961-1990 it was separated from it by the Berlin Wall.
The present municipality was established in 1994 by the merger of Teltow and the former village of Ruhlsdorf. It has seen a major increase of population since the fall of the Berlin Wall and German reunification. In 2005, German painter Markus Lüpertz installed his studio of sculpture at Teltow.
Development of Population since 1875 within the Current Boundaries (Blue Line: Population; Dotted Line: Comparison to Population Development of Brandenburg state; Grey Background: Time of Nazi rule; Red Background: Time of Communist rule)
Recent Population Development (Blue Line) and Forecasts
Population development within the current boundaries (2013)