Connecticut · United States
ZIP codes by county — Connecticut
8 counties
| County | FIPS | Population | Median household income |
|---|---|---|---|
| Fairfield County | 09001 | — | — |
| Hartford County | 09003 | — | — |
| Litchfield County | 09005 | — | — |
| Middlesex County | 09007 | — | — |
| New Haven County | 09009 | — | — |
| New London County | 09011 | — | — |
| Tolland County | 09013 | — | — |
| Windham County | 09015 | — | — |
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties. Sources: U.S. Census Bureau.