Southglenn is a neighborhood in the City of Centennial, Colorado.

A former census-designated place (CDP), the population was 43,520 at the 2000 census.

[3] Southglenn was built as a master planned community by Jordon Perlmutter.

[4] It has been a part of the City of Centennial since the city's incorporation in 2001.

Southglenn is located at coordinates 39°35′13″N 104°57′11″W / 39.587°N 104.953°W / 39.587; -104.953.