01863 vs 01886 ZIP Codes
North Chelmsford, MA · Westford, MA
| Metric | 01863 | 01886 |
|---|---|---|
| City | North Chelmsford | Westford |
| County | Middlesex | Middlesex |
| State | Massachusetts | Massachusetts |
| Time zone | Eastern Time | Eastern Time |
| Population | 8,891 | 21,951 |
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.