Odessa
- County:
- New Castle County
- County Seat:
- No
- Area (mi²):
- 0.507
- State:
- Delaware
Odessa is a town located in New Castle County, Delaware. Odessa has a 2026 population of 366. Odessa is currently growing at a rate of 1.1% annually and its population has increased by 0.27% since the most recent census, which recorded a population of 365 in 2020.