New Castle is home to many talented painters, photographers, jewelers and crafters. Speckled Feather Mercantile located in the New Castle City Market Plaza, is an artists’ collective comprised of independent designers with a focus on the local entrepreneur. They offer a popular series of art and craft classes. Local restaurants display the work of New Castle Artists, which can also be seen at the Community Market and in occasional art shows, as well as in galleries in Glenwood Springs and Rifle.

All schools in the Re-2 School District offer music classes, and there are regular performances by young musicians. Local bands perform at community special events and at the Lazy Bear Restaurant.

The New Castle Branch Library provides the cultural hub for the Town, offering book, films and music to borrowers. For those who prefer to own their own books, the Friends of the Library offer a large selection for sale and discount prices. The library also hosts film showing, lectures, musical performances, and classes.