2010 population estimate for Cincinnati, United States of America In 2010, Cincinnati, United States of America has an estimated population of 1,365,000 people. 1950/Cincinnati-USA.html>1950 | 1955/Cincinnati-USA.html>1955 | 1960/Cincinnati-USA.html>1960 | 1965/Cincinnati-USA.html>1965 | 1970/Cincinnati-USA.html>1970 | 1975/Cincinnati-USA.html>1975 | 1980/Cincinnati-USA.html>1980 | 1985/Cincinnati-USA.html>1985 | 1990/Cincinnati-USA.html>1990 | 1995/Cincinnati-USA.html>1995 | 2000/Cincinnati-USA.html>2000 | 2005/Cincinnati-USA.html>2005 | 2010/Cincinnati-USA.html>2010 | 2015/Cincinnati-USA.html>2015 | full/Cincinnati-USA.html>All years 1950-2000/Cincinnati-USA.html>1950-2000 | 1950-2015/Cincinnati-USA.html>1950-2015 | 1955-2005/Cincinnati-USA.html>1955-2005 | 1960-2000/Cincinnati-USA.html>1960-2000 | 1970-2000/Cincinnati-USA.html>1970-2000 | 1975-2005/Cincinnati-USA.html>1975-2005 | 1985-2005/Cincinnati-USA.html>1985-2005 | 1995-2005/Cincinnati-USA.html>1995-2005 | 2000-2005/Cincinnati-USA.html>2000-2005 | 2005-2010/Cincinnati-USA.html>2005-2010 | 2005-2015/Cincinnati-USA.html>2005-2015