01821 vs 01862 ZIP Codes
Billerica, MA · North Billerica, MA
| Metric | 01821 | 01862 |
|---|---|---|
| City | Billerica | North Billerica |
| County | Middlesex | Middlesex |
| State | Massachusetts | Massachusetts |
| Time zone | Eastern Time | Eastern Time |
| Population | 30,310 | 10,227 |
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.