Blackstone is an unincorporated community in section 7 of Sunbury Township, Livingston County, Illinois, United States. Blackstone is 10 miles southeast of Streator and 13 miles west of Dwight, Illinois. Blackstone has a post office with ZIP code 61313. It is part of the geographic region known as Streatorland.The town was named after 19th-century railroad executive Timothy Blackstone, then president of the Alton Railroad. A post office was established in 1870.Blackstone was situated on the western extension of the Chicago & Alton Railroad, nearly midway between the cities of Streator and Dwight. The land where the town was located originally belonged to R. B. Hamilton. About the time that the line of the railroad was completed, the land was purchased by William Shepard of Jersey County, Illinois. He commissioned A. C. Huetson to lay out the town which he completed on January 6, 1870. The original plat consisted of eighty acres.