Buildings, sites, districts, and objects in Delaware listed on the National Register of Historic Places:
- for Dover, see: Kent County
- for Georgetown, see: Sussex County
- for Newark, see: Northern New Castle County
- for Wilmington, see: Wilmington
Contents: Divisions in Delaware
| Kent | New Castle ( Northern | Southern | Wilmington ) Sussex |
The following are approximate tallies of current listings by county. These counts are based on entries in the National Register Information Database as of April 24, 2008 [1] and new weekly listings posted since then on the National Register of Historic Places web site. [2] There are frequent additions to the listings and occasional delistings and the counts here are approximate and not official. New entries are added to the official Register on a weekly basis. [3] Also, the counts in this table exclude boundary increase and decrease listings which modify the area covered by an existing property or district and which carry a separate National Register reference number. The numbers of NRHP listings in each county are documented by tables in each of the individual county list-articles.
| County | # of Sites | |
|---|---|---|
| 1 | Kent | 157 |
| 2.1 | New Castle: Wilmington | 89 |
| 2.2 | Southern New Castle | 87 |
| 2.3 | Northern New Castle | 226 |
| 2.4 | New Castle duplicate | (1) [4] |
| 2.5 | New Castle: Total | 401 |
| 3 | Sussex | 151 |
| (duplicates) | (2) [4] | |
| TOTAL | 706 | |