Monticello, an old settlement in Johnson county, is located on Mill creek a short distance southwest of Zarah, the nearest railroad station, and about 10 miles north of Olathe, from which place it has rural free delivery. It was laid out by a town company in June, 1857, and a store was opened by Rich & Rivley. The postoffice was established the same year but it was discontinued when the rural delivery was established. In 1858 the town was almost destroyed by a tornado but was quickly rebuilt, and for a time aspired to become the county seat. It did not meet the expectations of its founders, however, and for many years has remained about the same size. At present it has several general stores, a school house, churches, blacksmith shop, about 15 dwellings and in 1910 had a population of 63.