| Nassau, Delaware | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Delaware#USA |
| Pushpin Label: | Nassau |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location within the state of Delaware |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Delaware |
| Subdivision Type2: | County |
| Subdivision Name2: | Sussex |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 26 |
| Coordinates: | 38.7519°N -75.1878°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 19969 |
| Area Code: | 302 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 214371[1] |
Nassau is an unincorporated community in eastern Sussex County, Delaware, United States. It lies just off Delaware Route 1 west of the city of Lewes and northeast of the town of Georgetown, the county seat of Sussex County.[2] Its elevation is 26 feet (8 m). It has a post office with the ZIP code 19969.[3]
Nassau, like much of central Delmarva, is part of the Salisbury, Maryland-Delaware Metropolitan Statistical Area. The Delaware Coast Line Railway passed through Nassau on its way to its customer in Lewes, SPI Pharma, and maintained a run-around track in Nassau to facilitate the moves to SPI Pharma, the locomotive using the run-around to then continue pushing the consist of tankcars and/or covered hoppers over the trackage between Nassau and Lewes to the end-of-track for the Lewes Branch at SPI Pharma, just outside the main entrance to Cape Henlopen State Park. The last train run was in 2017. The ROW is now a bike and pedestrian trail.