| Avon: First Congregational Church | Avon: West Avon Congregational Church |
| Berlin: Berlin Congregational Church | Bethany: First Church of Christ, Congregational |
| Bethel: First Congregational Church | Bloomfield: First Congregational Church in Bloomfield |
| Bolton: Bolton Congregational Church | Brookfield: Congregational Church of Brookfield |
| Canaan: North Canaan Congregational Church, UCC | Canton Center: First Congregational Church |
| Chester: The United Church of Chester | Colchester: Colchester Federated Church |
| Cornwall: The UCC in Cornwall, Congregational | Coventry: Second Congregational Church of Coventry |
| Danbury: King Street United Church of Christ | Darien: First Congregational Church of Darien |
| Derby: First Congregational Church of Derby | East Granby: East Granby Congregational Church |
| East Hampton: Congregational Church of East Hampton | East Hartford: First Congregational Church of East Hartford |
| East Hartford: South Congregational Church | Ellington: Ellington Congregational Church |
| Enfield: Enfield Congregational Church | Essex: First Congregational Church of Essex |
| Fairfield: First Church Congregational | Farmington: First Church of Christ, Congregational |
| Glastonbury: First Church of Christ, Congregational | Goshen: Church of Christ, Congregational |
| Greenwich: First Congregational Church of Greenwich | Guilford: North Congregational Church UCC |
| Hamden: Spring Glen Church | Hartford: Asylum Hill Congregational Church |
| Hartford: Immanuel Congregational Church | Higganum: Higganum Congregational Church |
| Kensington: Kensington Congregational Church | Kent: First Congregational Church |
| Madison: First Congregational Church of Madison | Madison: North Madison Congregational Church |
| Middle Haddam: Second Congregational Church | Middlebury: Middlebury Congregational Church |
| Middletown: First Church of Christ, Congregational | Middletown: South Congregational Church |
| Milford: Woodmont United Church of Christ | Naugatuck: Congregational Church of Naugatuck |
| New Britain: First Church of Christ, Congregational, UCC | New Britain: South Congregational / First Baptist Church |
| New Hartford: North Congregational Church | New Haven: First Church of Christ in New Haven |
| New Haven: Shalom United Church of Christ | Newington: Church of Christ, Congregational |
| Newtown: Newtown Congregational Church | Norfolk: Church of Christ, Congregational |
| North Branford: North Branford Congregational Church, UCC | North Haven: North Haven Congregational Church |
| Oxford: Oxford United Church of Christ, Congregational | Plainville: Congregational Church of Plainville |
| Plantsville: Plantsville Congregational Church | Portland: First Congregational Church of Portland |
| Prospect: Prospect Congregational Church | Redding: First Church of Christ, Congregational |
| Rocky Hill: Rocky Hill Congregational Church | Roxbury: Roxbury Congregational Church |
| Salisbury: Congregational Church of Salisbury | Simsbury: First Church of Christ |
| Somers: Somers Congregational Church | South Glastonbury: Congregatonal Church in South Glastonbury |
| South Windsor: First Congregation Church of South Windsor | South Windsor: Wapping Community Church |
| Southbury: United Church of Christ, Southbury | Southport: Southport Congregational Church, UCC |
| Storrs: Storrs Congregational Church | Stratford: First Congregational Church of Stratford |
| Suffield: First Church of Christ, Congregational | Talcottville: Talcottville Congregational Church |
| Tolland: United Congregational Church of Tolland | Trumbull: Unity Hill United Church of Christ |
| Wallingford: First Congregational Church | Waterbury: Mill Plain Union Church |
| Watertown: First Congregational Church | West Hartford: First Church of Christ, Congregational |
| West Haven: First Congregational Church of West Haven | Westport: Congregational Church of Green's Farms |
| Willimantic: First Congregational Church of Willimantic | Windsor: First Church in Windsor |
| Wolcott: Wolcott Congregational Church | Woodbridge: First Church of Christ, Woodbridge |
| Woodbury: First Congregational Church & Ecclesiastical Society | First Congregational Church of Woodstock Woodstock |
