Collettsville is a small unincorporated community in Caldwell County, North Carolina, United States. It is part of the Hickory–Lenoir–Morganton Metropolitan Statistical Area.Although there are many houses made with a Gothic design, there are also many houses that look like cabins, built out of plain wood. Some houses are estimated to have been built as early as 1900 and are now occupied by locals. The median home cost in Collettsville is $109,100. Home appreciation since the last year has been about 7.10 percent.Many houses are being built in new communities. The future for Collettsville looks brighter than its past. Growth is steady. Located on a beautiful river many new homes are being built as newcomers are drawn to this location.