Delaware · United States
New Castle population
5,382people · latest figure
New Castle has a population of 5,382, making it the 5279th largest place we list in United States. It is in Delaware.
New Castle holds under a tenth of one per cent of United States's 349,035,494 people. New York City, the largest place we list there, is 1636 times its size.
5,382
population
#5,279
New Castle is in Delaware, which has 56 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Hidden Valley | Indiana | 5,387 |
| Huntertown | Indiana | 5,387 |
| Terryville | Connecticut | 5,387 |
| Suncook | New Hampshire | 5,379 |
| Waynesville | Missouri | 5,374 |
| Summit | Arizona | 5,372 |
All places in United States → · Delaware →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.