| Business | Phone |
| St John's Church 35 Park St, Williamstown 1267 | (413) 458-8144 |
| St Patrick Parish Ctr 53 Southworth St, Williamstown 1267 | (413) 458-5443 |
| St Patrick's Catholic Church 54 Southworth St, Williamstown 1267 | (413) 458-4954 |
| St Patrick's Rectory 54 Southworth St, Williamstown 1267 | (413) 458-4946 |
| St Raphael's Rectory 207 Cole Ave, Williamstown 1267 | (413) 458-3051 |
| Second Congregational Church 81 Hancock Rd, Williamstown 1267 | (413) 458-3467 |
| Community Bible Church 160 Bridges Rd, Williamstown 1267 | (413) 458-5556 |
| First Baptist Church 731 Main St, Williamstown 1267 | (413) 458-4811 |
| First Cong Church 906 Main St, Williamstown 1267 | (413) 458-4273 |
| First United Methodist Church 777 Main St, Williamstown 1267 | (413) 458-3183 |