New Columbia is a census-designated place[3] located in White Deer Township, Union County in the state of Pennsylvania.

The community is located in eastern Union County along U.S. Route 15, very near to the West Branch Susquehanna River.

The village of New Columbia or "Newky" as the locals call it, was formally laid out and incorporated in 1818 by David Yoder (born 1765).

By 1886, New Columbia had 100 houses, a hotel, a store, a post office, a train station, a boat shop and approximately 350 inhabitants.

1889 marked the year that White Deer Township residents hired their first Constable, Moses Brown.