21754 vs 21770 ZIP Codes
Ijamsville, MD · Monrovia, MD
| Metric | 21754 | 21770 |
|---|---|---|
| City | Ijamsville | Monrovia |
| County | Frederick | Frederick |
| State | Maryland | Maryland |
| Time zone | Eastern Time | Eastern Time |
| Population | 6,323 | 5,164 |
Demographic figures come from U.S. Census Bureau / ACS data included in the source ZIP dataset; many ZIP codes have no demographic figures in that dataset.