New Jersey - Area of significance: Architecture
| Newbold, William and Susannah, House |
| New Brunswick Station |
| New Hampton Historic District |
| New Jersey Bell Headquarters Building |
| New Jersey Division of Motor Vehicles Building |
| New Jersey Safe Deposit and Trust Company |
| New Market-Linvale-Snydertown Historic District |
| New Milford Plant of the Hackensack Water Company |
| New North Reformed Low Dutch Church |
| New Point Baptist Church |
| New St. Mary's Episcopal Church |
| Newton Friends' Meetinghouse |
| Newton Town Plot Historic District |
| Newton Union Schoolhouse |
| New Vernon Historic District |
| Nicholson, Abel and Mary, House |
| Nicholson, Sarah and Samuel, House |
| Normandy Park |
| North Avenue Commercial District |
| North Avenue Commercial Historic District |
| North Branch Historic District |
| North Broad Street Historic District |
| North Church |
| North Long Branch School-Primary No. 3 |
| North Pemberton Railroad Station |
| Northside Institutional Historic District |
| Nothnagle, C. A., Log House |
| Oak Dell |
| Oakes Estate |
| Oaks Historic District, The |
| Oakwood |
| O'Blenis House |
| Ocean City 34th Street Station |
| Ocean City City Hall |
| Ocean City, NJ Life-Saving Station |
| Ocean City Tenth Street Station |
| Ocean County Courthouse |
| Ocean County Jail |
| Ocean Grove Camp Meeting Association District |
| Octagonal Poultry House |
| Olcott Avenue Histrict District |
| Old Baptist Parsonage |
| Old Barracks |
| Old Bergen Church |
| Old Broad Street Presbyterian Church and Cemetery |
| Old Cape May County Courthouse Building |
| Old Coast Guard Station Manasquan Inlet |
| Old Cranbury School |
| Old Eagle Tavern |
| Old First Presbyterian Church |
| Old Grandin Library |
| Old Kentuck |
| Old Mine Road Historic District |
| Old Queen's |
| Old Ryan Farm |
| Old Stone Church |
| Old Stone Presbyterian Church |
| Oldwick Historic District |
| Onderdonk, Isaac, House |
| Oradell Station |
| Orange Free Public Library |
| Orange Memorial Hospital Historic District |
| Orange Station |
| Orient Baptist Church |
| Osborn, Garret K., House and Barn |
| Our Lady of Mercy Chapel |
| Outwater, Richard, House |
| Packer House |
| Palace Theatre |
| Palisade Interstate Parkway |
| Pan American C.M.A. Church |
| Paramus Reformed Church Historic District |
| Parker Homestead |
| Park Ridge Station |
| Parlaman, Johannes, House |
| Parsonage of the Montville Reformed Dutch Church |
| Passaic County Court House and United States Custom House and Post Office Historic District |
| Passaic Elks Club |
| Paterson City Hall |
| Paterson Downtown Commercial Historic District |
| Paulison-Christie House |
| Paulus Hook Historic District |
| Peachfield |
| Pearson-How, Cooper, and Lawrence Houses |
| Pearson, Isaac, House |
| Penns Neck Baptist Church |
| Pennsylvania Station |
| People's Bank and Trust Company Building |
| Perkins House |
| Perry, Peter D., House |
| Perry-Petty Farmstead |
| Perryville Tavern |
| Perth Amboy City Hall and Surveyor General's Office |
| Perth Amboy Station |
| Peters Valley Historic District |
| Philadelphia and Reading Railroad Freight Station |
| Philadelphia Watch Case Company Building |
| Phillipsburg Commercial Historic District |
| Phillips, Joseph, Farm |
| Pine Street Historic District |
Data from United States Park Service and Wikidata
