Kleinburg is a small unincorporated village located in the city of Vaughan, Ontario, Canada.In its early days, Kleinburg was dependent on its many flour and wheat mills, located off the Humber River. The large housing developments began in the 1950s in the west and continued in the 1970s southeast of Kleinburg, in 1993 in the south, 1998 sporadically in the northeast, 1990s south of Kleinburg and the 2000s to the north. Kleinburg has always been a small, quiet town, attracting many affluent visitors and residents. During its major expansion in the 1990s and early 2000s, many new large homes have been built. The homes north and west of Nashville Road typically cost more than one million dollars. Older, larger and more established properties are valued more than this, while homes built near conservation areas and the Humber River are by far the most expensive.