100 Smallest ZIP Codes in the United States by Population in Carroll County, Maryland
Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Carroll County, Maryland.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 21791 | UNION BRIDGE | MD | 4,855 |
| 2 | 21776 | NEW WINDSOR | MD | 6,434 |
| 3 | 21048 | FINKSBURG | MD | 9,759 |
| 4 | 21787 | TANEYTOWN | MD | 10,879 |
| 5 | 21102 | MANCHESTER | MD | 12,024 |
| 6 | 21074 | HAMPSTEAD | MD | 15,146 |
| 7 | 21158 | WESTMINSTER | MD | 23,011 |
| 8 | 21771 | MOUNT AIRY | MD | 31,653 |
| 9 | 21784 | SYKESVILLE | MD | 37,219 |
| 10 | 21157 | WESTMINSTER | MD | 39,816 |