The Colin area is made up of four major housing areas namely: Twinbrook, Poleglass, Lagmore and Kilwee/Upper Dunmurry Lane. It has a growing population of circa 30,000 people.
It is a Neighbourhood Renewal Area in the top 10% of the most disadvantaged communities in Northern Ireland. Twinbrook is ranked 17 in the Multiple Deprivation Measure and health, education and employment attainments are low. Saints Youth Centre attracts young people from both Twinbrook Poleglass and Lagmore housing estates.
Twinbrook is part of a large urban conurbation on the outskirts of Belfast.