STATE · CT
Counties in Connecticut
Connecticut has 8 counties and county equivalents.
| County | Type | FIPS | Population (2023) |
|---|---|---|---|
| Fairfield County | county | 09001 | — |
| Hartford County | county | 09003 | — |
| Litchfield County | county | 09005 | — |
| Middlesex County | county | 09007 | — |
| New Haven County | county | 09009 | — |
| New London County | county | 09011 | — |
| Tolland County | county | 09013 | — |
| Windham County | county | 09015 | — |
Sources: U.S. Census Bureau geographic reference files; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27. Looking for yours? Find your county.