 The Middlesex Canal was built through the village in 1783 and the Boston and Lowell Railroad was put through in the 1840s.North Billerica has its own ZIP Code (01862) and post office which also takes in the village of West Billerica and parts of River Pines.In the late 19th and early 20th centuries, there was a building on Station Street, next to the depot, that served as the North Fire Station, Town Hall Annex, and Post Office.