The Plainfield area was first settled in the 1820s with the construction of a sawmill on the DuPage River. The first 13 blocks of the Village of Plainfield, surrounding the current Village Green, were laid out by Chester Ingersoll in 1834. The urban core continued to expand and evolve over the next 150 years. Recent growth has significantly affected Plainfield. In 1990, there were 4,557 people in the community, and according to the 2010 Census, Plainfield had a population of 39,581.
The Historic Preservation Commission (HPC) formed in 2004 following the passage of a Historic Preservation Ordinance. The HPC is comprised of nine citizen appointees who have special knowledge or training in fields closely related to historic preservation. The HPC meets the second and fourth Thursday of every month at 7 p.m. at the Village Hall. Interested members of the public are invited and encouraged to attend meetings.
The HPC designates local historic landmarks, local historic districts, and reviews COA and COEH applications. It is also recognized by the Department of the Interior as a Certified Local Government. This designation gives the HPC the ability to review National Register Nominations, participate in grant programs, and participate in other federal and state incentive programs.