| Business | Phone |
| Rockville City Clerk 111 Maryland Ave, Rockville 20850 | (240) 314-8280 |
| Rockville City Hall 111 Maryland Ave, Rockville 20850 | (240) 314-5000 |
| Rockville City Managers Office 111 Maryland Ave, Rockville 20850 | (240) 314-8100 |
| Rockville City Mayor & Council 111 Maryland Ave, Rockville 20850 | (240) 314-8290 |