Long Neck, Delaware
| Long Neck, Delaware | |
|---|---|
| Location in Sussex County and the state of Delaware. | |
| Coordinates: 38°37′12″N 75°09′03″W / 38.62000°N 75.15083°W | |
| Country | United States | 
| State | Delaware | 
| County | Sussex | 
| Area | |
|  • Total | 3.13 sq mi (8.12 km2) | 
| • Land | 2.76 sq mi (7.15 km2) | 
| • Water | 0.38 sq mi (0.97 km2) | 
| Elevation | 13 ft (4 m) | 
| Population  (2020) | |
|  • Total | 3,017 | 
| • Density | 1,093.51/sq mi (422.21/km2) | 
| Time zone | UTC-5 (Eastern (EST)) | 
| • Summer (DST) | UTC-4 (EDT) | 
| ZIP code | 19966 | 
| Area code | 302 | 
| FIPS code | 10-43245 | 
| GNIS feature ID | 1867106 | 
Long Neck is a census-designated place (CDP) in Sussex County, Delaware, United States. The population was 1,980 at the 2010 census. Long Neck was the only census-designated place in Sussex County until Lincoln was added in the 2020 United States census. It is part of the Salisbury, Maryland-Delaware Metropolitan Statistical Area.