21042 vs 21044 ZIP Codes
Ellicott City, MD · Columbia, MD
| Metric | 21042 | 21044 |
|---|---|---|
| City | Ellicott City | Columbia |
| County | Howard | Howard |
| State | Maryland | Maryland |
| Time zone | Eastern Time | Eastern Time |
| Population | 38,076 | 41,704 |
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.