Caroline County, Maryland ZIP Codes
- ZIP records
8 - Cities represented
8 - Sum of listed ZIP population estimates
32,942
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 21629 | Denton | 10,252 |
| 2 | 21632 | Federalsburg | 6,436 |
| 3 | 21655 | Preston | 5,053 |
| 4 | 21639 | Greensboro | 4,682 |
| 5 | 21660 | Ridgely | 4,132 |
| 6 | 21640 | Henderson | 1,163 |
| 7 | 21636 | Goldsboro | 1,097 |
| 8 | 21641 | Hillsboro | 127 |
Cities in Caroline County
ZIP Directory
Browse all ZIP data for Maryland
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.