| Business | Phone |
| Flintstone United Methodist Ch 21609 National Pike Ne, Flintstone 21530 | (301) 478-2369 |
| Glendale Church Of Brethren 20407 Flintstone Creek Rd Ne, Flintstone 21530 | (301) 478-2184 |
| Mount Hermon United Methodist Po Box 2, Flintstone 21530 | (301) 777-7760 |