Louth shared, to a considerable degree, in the industrialisation of north-eastern Ireland, which is usually seen as being confined to Ulster. Grain was grown throughout, and the brewing and distilling tradition continues today, while the linen industry was, perhaps surprisingly, stronger in the County's south (where Drogheda's new shopping centre is named for a 'Scutching Hall', site of an essential operation in the processing of retted flax.

Louth's long tradition of manufacturing industry has been revived and strengthened in recent years. Between 1996 and 2002 the population soared by more than 10%, from 92,166 to 101,821, further increasing by almost nine percent to reach 110,894 in 2006, an increase of more than 20% in just ten years.

Boyne Viaduct