Middletown Flag

Middletown

County Seat:
No
Area (mi²):
13.508
State:
Delaware

Middletown is a town located in New Castle County, Delaware. Middletown has a 2026 population of 25,686. Middletown is currently growing at a rate of 1.98% annually and its population has increased by 9.81% since the most recent census, which recorded a population of 23,392 in 2020.

25.7K
Total Population
1,902
Density (mi²)
498 1.98%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)