Historic District and Sites
| Historic District | Local Designated Historic District | NJ State Register of Historic Places | National Registerof Historic Places | |
| 1 | Broadway HistoricDistrict | 12/7/92 | Not listed | Not listed |
| 2 | Cedar Brook ParkHistoric District | Not listed | 6/25/07 | 8/28/07 |
| 3 | Crescent AreaHistoric District | 1979 | 8/15/80 | 12/12/80 |
| 4 | Green Brook ParkHistoric District | Not listed | 3/18/04 | 5/14/04 |
| 5 | Hillside AvenueHistoric District | 2/2/81 | 8/14/80 | 6/1/82 |
| 6 | NetherwoodHeights HistoricDistrict | 1988 | Not listed | Not listed |
| 7 | North AvenueHistoric District | 8/17/81 | 2/9/84 | 3/29/84 |
| 8 | Plainfield CivicHistoric District | 1993 | 5/11/93 | 6/17/93 |
| 9 | Putman-WatchungHistoric District | 1987 | ||
| 10 | Van Wyck BrooksHistoric District | 2/2/81 | 10/7/85 | 12/10/85 |
City of Plainfield Designated Historic Sites 2010
| Historic District | Local Designation |
NJ State Register of Historic Places | National Registerof Historic Places | |
| 1 | 315 Central Avenue:Central Fire Headquarters | 1/25/93 | 3/4/93 | |
| 2 | 501-511 Central Avenue : Plainfield Seventh Day Baptist Church | 7/19/06 | ||
| 3 | 1012-1036 Central AvenueGeorge A. Strong House / DuCret School of the Arts | 7/19/06 | ||
| 4 | 600 Cleveland Avenue : Grace Episcopal Church | 7/19/06 | 12/20/01 | |
| 5 | 232 East Front StreetYWCA of Plainfield / North Plainfield | 1/15/98 | 3/12/98 | |
| 6 | 857-859 East Front StreetGate House to the John Taylor Johnston Estate | 7/19/06 | ||
| 7 | 133-139 East Seventh Street : J.K. Myers House | 7/19/06 | ||
| 8 | 500-506 Madison AvenuePlainfield Seventh Day Baptist Church / Plainfield Board of Education Building | 7/19/06 | ||
| 9 | 1102-1108 Myrtle Avenue : H.C. Fuller House | 7/19/06 | ||
| 10 | 523-525 Park Avenue : Clawson House | 7/19/06 | ||
| 11 | 1362-1366 Randolph Road : Fitz-Randolph House | 7/19/06 | ||
| 12 | 1015-1017 South Avenue : City Firehouse #4 | 1/25/93 | 3/11/93 | |
| 13 | 846-854 Terrill Road : Lampkin House | 7/19/06 | ||
| 14 | 602 West Front Street : Nathaniel Drake House | 1/29/73 | 6/19/73 | |
| 15 | 201-209 West Second StreetTitsworth-Sutphen House | 7/19/06 | ||
| 16 | 516 West Sixth StreetSt. Mary’s Catholic Church Complex | 1/28/85 | 4/11/85 | |
| 17 | 1170-1174 Woodland Avenue | 7/19/06 | ||
| 18 | Netherwood Railroad Station | 3/17/84 | 6/22/84 | |
| 19 | Plainfield Railroad Station | 3/17/84 | 6/22/84 |