Complex sentence: Since the mid- 1990s, Dromiskin, like many areas in County Louth, have seen marked increase in population--many of its population now form part of the Dublin commuter belt--in 2006, about 2500 people were living in the Dromiskin area.
Split into simpler sentences: Since the mid- 1990s, Dromiskin, like many areas in County Louth, have seen marked increase in population. In 2006, about 2500 people were living in the Dromiskin area.