Pinehurst is an unincorporated village and census-designated place (CDP) in the town of Billerica, Middlesex County, Massachusetts, United States. The population was 7,152 at the 2010 census. It is located in the southeastern part of town along Massachusetts Route 3A between the Shawsheen River and the Burlington town line.
Pinehurst's zip code is 01866 and is for mail delivery to the Pinehurst PO Station only. Home and office mail delivery in Pinehurst must use the Billerica, MA zip code (01821).