21666 Demographics
21666 is a ZIP code area in the United States, with 12,848 residents across 22 square miles. That is about 588 people per square mile.
At the 2020 census
| Population | 12,848 |
|---|---|
| Land area | 22 sq mi |
| Density | 588 / sq mi |
Data: 2020 Decennial Census · land area from Census TIGER/Line
How 21666 compares to the US
We're computing this ZIP code area's comparison table. Check back shortly. Population, land area, and density above are already exact.
Related places
About this page
Statistics are computed for the ZIP Code Tabulation Area, the census approximation of the ZIP code's territory.
Figures come from the 2020 census and the American Community Survey, compared against national averages.