
Harrington
- County:
- Kent County
- County Seat:
- No
- Area (mi²):
- 2.724
- State:
- Delaware
Harrington is a city located in Kent County, Delaware. Harrington has a 2025 population of 3,914. Harrington is currently growing at a rate of 0.69% annually and its population has increased by 3.6% since the most recent census, which recorded a population of 3,778 in 2020.
The average household income in Harrington is $75,495 with a poverty rate of 10.85%. The median age in Harrington is 30.7 years: 32.4 years for males, and 28.7 years for females.