The Plainfield Park District was founded in 1966 when the citizens of Plainfield Township authorized, by referendum, the establishment of the Park District.
A Park, Recreation and Conservation Master Plan was completed in October 1969, laying the groundwork for the operation of the Park District in three stages: immediate (1969-1970), intermediate (1971-1972), and long-range (1973-1975).
An attitude and interest survey was completed in 1980 to gauge the interests of the community.
In 1985, the Board of Commissioners formed the Friends of the Plainfield Park District Foundation to act solely as a fund-raising organization.
An update of the original Master Plan was commissioned in 1988 and completed in 1990. At the completion of the 1990 plan, the Park District had 187 acres of land and an estimated population of 20,000 people.
The Plainfield area’s growth explosion began in the early 1990’s. According to U.S. Census numbers, the population of Plainfield Township, which accounts for approximately 90 percent of the Park District, has increased 197 percent since 1990 (from 15,392 in 1990 to 45,691 in 2000). The area’s population is expected to continue increasing rapidly. The Northeastern Illinois Planning Commission projects the population of Plainfield Township will increase by nearly 105 percent (to 93,871) by 2030.A new Comprehensive Master Plan was completed in May 2005 to provide a framework for future development. The Park District will be challenged to evolve over the next 30 years to accommodate the growing needs of a rapidly-expanding community.