| Business | Phone |
| Calmar Community United Mthdst 208 W Main, Calmar 52132 | (563) 562-3033 |
| Calmar Lutheran Church 200 N East St, Calmar 52132 | (563) 562-3633 |
| St Aloysius Catholic Church 304 S Maryville St, Calmar 52132 | (563) 562-3603 |
| Trinity Lutheran Church 306 W Clark St, Calmar 52132 | (563) 562-3202 |