Culture of Castlebar

Castlebar is home the TheLinenhall Arts Centre, which exhibits visual art throughout the year, as well as hosting live drama and music performances. The Linenhall also organises an annual children's arts festival called RoolaBoola (an anglicisation of the Irish phrase ríráagusruailebuaile which in this context means "boisterous fun"). The Royal Theatre and Event Centre, with a capacity of two thousand two hundred fully seated, four thousand standing, hosts larger-scale productions and popular music concerts.

There are Roman Catholic, Church of Ireland (Anglican), and Elim Pentecostal churches in the town as well as several Spiritualist gatherings. There is a recently-established Mayo male voice choir and Mayo Concert Orchestra. There is also a marching band in the town – one of the few survivng marching bands west of the Shannon Throughout the 1980s and 1990s, Castlebar experienced significant immigration, growth and investment.