06419 vs 06443 ZIP Codes
Killingworth, CT · Madison, CT
| Metric | 06419 | 06443 |
|---|---|---|
| City | Killingworth | Madison |
| County | Middlesex | New Haven |
| State | Connecticut | Connecticut |
| Time zone | Eastern Time | Eastern Time |
| Population | 6,525 | 18,269 |
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.